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    Home » Recipes » Dairy and Gluten-Free Dinner Recipes

    Slow Cooker Beef Fajitas [Gluten-Free]

    Modified: Mar 19, 2026 · by Shelby Stover · This post may contain affiliate links · 24 Comments

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    Two images with text between the images the top of a black slow cooker with bell peppers and beef in it and the bottom of the beef fajitas in a wrap with limes on it.

    The perfect recipe to come home to! These Slow Cooker Beef Fajitas are delicious no matter how you serve them. Made with homemade, healthy fajita seasoning and simmered all day in a savory blend, these steak fajitas are a recipe you’ll want to keep on hand!

    Black slow cooker with beef fajitas and bell peppers in it in a tomato sauce with ingredients around the slow cooker.

    "These fajitas are a life saver! I throw this together in the morning before work and then, voila!, dinner is done when I get home! Your recipe is flavorful and I love the addition of the bone broth for flavor and health!" -Lindsey

    A Quick Look At The Recipe

    • ⏲️Ready In: 5 minute prep time
    • 👪Serves: 4
    • 🍽 Calories and Protein: 479 kcals and 67 grams of protein
    • 📋Main Ingredients: Beef, bell peppers, tomato sauce, chili powder and cumin.
    • 📖 Dietary Notes: Dairy-free, gluten-free,high-protein, nut-free.
    • ⭐ Why You'll Love It: These slow cooker beef fajitas are tender, flavorful, and effortless to make for a hearty, hands-off dinner.

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    If you’re looking for busy weeknight meals, there is no easier tool than the slow cooker. Call me old-fashioned but it is one of my favorites! Coming home from work to a house that smells divine with a meal hot and ready is pretty much perfection for a busy mom.

    And these slow cooker beef fajitas are no exception (along with slow cooker beef and broccoli, of course). Learn more about choosing slow cookers and the best fit for your family (and how to use it!) and get on top of these 30 dairy-free slow cooker recipes to keep your nights sane.

    Jump To
    • A Quick Look At The Recipe
    • 💭Why You'll Love This Recipe
    • Ingredients and Substitutions
    • Flavor Variations
    • How To Make Slow Cooker Beef Fajitas
    • Expert Tips To Make It
    • How To Serve The Beef Fajitas
    • Cook Once Eat Twice
    • Slow Cooker Beef Fajitas FAQs
    • More Slow Cooker Recipes You’ll Love
    • Slow Cooker Beef Fajitas

    💭Why You'll Love This Recipe

    No Effort: These steak fajitas are easy to prep and the slow cooker does all the work for you.

    Taste: Given that the recipe uses a homemade fajita mix it's got a punch of savory flavor that makes you want more.

    Versatile: Enjoy them as fajitas one night and pasta the next. This recipe is wonderful for meal prep.

    Ingredients and Substitutions

    Multiple ingredients to make slow cooker beef fajitas in measuring cups with text labels over top.
    • Steak strips: To be honest, any beef will work here. Most commonly, I use stir fry beef strips because they’re on sale (hello, budget meals!). However, I have also used flank steak and cut it up. Because the beef stews for so long, even a tougher cut will work! Learn more about buying meat on a budget so you can save costs here.
    • Bell peppers: Choose any colors you like; these do get super soft from cooking, so sometimes it’s nice to serve the slow cooker steak fajitas with some fresh ones on the side, too.
    • Broth: You do need a tiny bit of broth for the recipe to fully get its flavor. Though beef broth makes sense, I actually use bone broth powder because it’s what I have on hand most often (learn more about bone broth powder).
    • Homemade fajita seasoning: A unique blend of spices you already have on hand that’ll bump up the flavor of the slow cooker beef fajitas.

    See the recipe card for full information on ingredients and quantities.

    Flavor Variations

    • Spicy: Add a few jalapenos into the crockpot or red pepper flakes for an extra kick of heat.
    • Creamy: If you have a dairy-free cream cheese you love, 1-2 tablespoons gives a delicious taste. Or, if you want to switch it up, crockpot green chili chicken is another way to rock taco/fajita night too!

    How To Make Slow Cooker Beef Fajitas

    Black slow cooker with peppers, raw beef, and carrots in it and limes around the slow cooker.

    Step 1: Place the steak and veggies into the slow cooker.

    Black slow cooker with tomato sauce and broth in it.

    Step 2: Pour the broth and tomato sauce over the top.

    Black slow cooker with peppers, raw beef, and carrots in it topped with homemade taco seasoning and limes around the slow cooker.

    Step 3: Mix the homemade taco seasoning and sprinkle it on. Mix all the ingredients and turn to low for 8 hours.

    Expert Tips To Make It

    Know that almost any cut of beef will work. Most commonly, I use beef stir fry strips, but flank steak cut into strips works too. You could even use cubed stewing beef like in this slow cooker steak bites recipe.

    There’s no need to “lock” your lid on the crock pot, it’s okay if some of the steam and moisture escape.

    This beef fajita recipe was made in a 7-quart slow cooker. If you have a larger slow cooker, you may not need to cook them as long. On the opposite side, a smaller crock pot, you may need to cook them longer.

    Basically, know that the size of your crock pot can alter the cooking length of the steak fajitas.

    Use any broth you wish in the recipe. I use bone broth powder because it’s easiest and gives a bit of a healthy boost. Learn more about what bone broth powder is.

    How To Serve The Beef Fajitas

    This is the fun part of the meal!

    Most commonly, we like to serve our beef fajitas or something like slow cooker pork carnitas on the table with the following toppings:

    • Gluten-free warm tortillas
    • Cashew sour cream
    • Lime
    • Kimchi
    • Fresh crunchy peppers
    • Diced tomatoes
    • Salsa
    • Avocados

    We pop everything onto the table and let everyone fix their own fajita.

    Cook Once Eat Twice

    As I mentioned, one of the best things about these crock pot steak fajitas is that they can be used in multiple ways!

    Obviously, serving them with wraps is the most common, but the mixture itself can also be used:

    • On top or mixed into rice to make stir fry
    • Mixed with noodles for pasta
    • On top of spaghetti squash for a lower-carb option

    Personally, I like to double the batch sometimes so that we have leftovers for the next meal as well.

    It’s how I make meal prep easy (learn more about tips to simplify meal prep).

    Slow Cooker Beef Fajitas FAQs

    What is the best beef for fajitas?

    Skirt steak or flank steak tends to be used the most. However, almost any cut will work because the beef is cooked for so long in the crock pot. With it simmering in juices all day, the meat tends to soften a bit.

    What toppings go on beef fajitas?

    Any toppings you enjoy! The most common toppings for beef fajitas are salsa, sour crème, lime juice, chopped tomatoes, avocados, and fresh romaine lettuce.

    What is fajita seasoning made of?

    Homemade fajita seasoning is a unique blend of chili powder, cumin, paprika, salt, pepper, and garlic powder.

    How do you store leftover fajitas?

    Store leftover beef fajitas in an airtight container (along with their juices) in the fridge for 3-4 days. Reheat them in the slow cooker on low or on the stove until heated through.

    Black slow cooker with beef fajitas and bell peppers in it in a tomato sauce with ingredients around the slow cooker.

    More Slow Cooker Recipes You’ll Love

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      Dairy-Free Slow Cooker Chicken Alfredo
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      Slow Cooker Gluten-Free Beef And Broccoli Recipe
    • Pin image with text: black slow cooker with dairy-free tuscan chicken, sause, sundried tomatoes and basil with the lid on a colored linen beside it
      Slow Cooker Dairy-Free Tuscan Chicken
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      Dairy Free Chicken Pot Pie In The Slow Cooker

    If you tried this Slow Cooker Beef Fajitas Recipe or any other recipe on my blog, please leave a 🌟 star rating and let me know how it goes!

    Black slow cooker with beef fajitas and bell peppers in it in a tomato sauce with ingredients around the slow cooker.

    Slow Cooker Beef Fajitas

    Shelby Stover
    A melt in your mouth blend of spices, peppers, and steak all cooked slowly to juicy perfection. These slow cooker steak fajitas are just as tasty freshly made as they are a meal prep recipe for the next night!
    5 from 13 votes
    Print Recipe Pin Recipe
    Prep Time 5 minutes mins
    Cook Time 8 hours hrs
    0 minutes mins
    Total Time 8 hours hrs 5 minutes mins
    Course dinner
    Cuisine American
    Servings 4
    Calories 479 kcal

    Video

    Equipment

    • 1 7 Quart Slow Cooker

    Ingredients
      

    • 1.2 kg Stir fry beef
    • 2 Bell peppers sliced
    • 1 Carrot jullienned
    • ½ Sweet onion optional
    • 200 mL Tomato sauce
    • ¼ cup Broth
    • 1 tbs Chili powder
    • 1.5 tbs Cumin
    • ½ teaspoon Paprika
    • 1 teaspoon Salt
    • 2 teaspoon Garlic powder

    Instructions
     

    • Slice the bell peppers and julienne the carrot.
    • Place the steak and veggies into the slow cooker.
    • Pour the broth and tomato sauce over top.
    • Mix the homemade fajita seasoning and sprinkle it on.
    • Mix all the ingredients together and turn to low for 8 hours.

    Notes

    Know that almost any cut of beef will work. Most commonly I use beef stir fry strips but flank steak cut into strips works too.
    There’s no need to “lock” your lid on the crock pot, it’s okay if some of the steam and moisture escape.
    This beef fajita recipe was made in a 7 quart slow cooker. If you have a larger slow cooker you many not need to cook them as long. On the opposite side a smaller slow cooker you may need to cook them longer.
    Basically, know that the size of your crock pot can alter the cooking length of the steak fajitas.
    Use any broth you wish in the recipe, I use bone broth powder because it’s easiest and gives a bit of a healthy boost. Learn more about what bone broth powder is.
     
    Disclaimer:

    Nutrition values are estimates only, using online calculators. Please verify using your own data"

    Nutrition

    Calories: 479kcalCarbohydrates: 14gProtein: 67gFat: 16gSaturated Fat: 6gPolyunsaturated Fat: 1gMonounsaturated Fat: 6gCholesterol: 180mgSodium: 1098mgPotassium: 1503mgFiber: 4gSugar: 8gVitamin A: 5411IUVitamin C: 83mgCalcium: 117mgIron: 8mg
    Have You Tried This Recipe?Please leave a star rating and comment below. Mention @fitasamamabear or tag #fitasamamabear!
    Wrap with steak fajitas, avocados and lime in it and limes and more ingredients around the wrap.
    Wrap with steak fajitas, avocados and lime in it and limes and more ingredients around the wrap.

    More Dairy and Gluten-Free Dinner Recipes

    • Slow cooker Hawaiian chicken with peppers and pineapples in a crockpot.
      Slow Cooker Hawaiian Chicken Thighs [Gluten-Free]
    • Sheet pan baked meatloaf with barbecue sauce and roasted vegetables.
      Gluten Free Mini Meatloaf Recipe
    • Baked sweet potatoes stuffed with sloppy joies.
      Sweet Potato Sloppy Joes [Gluten-Free]
    • A plate of seared shrimp with chimichurri sauce.
      Dairy-Free Chimichurri Shrimp

    Comments

    1. Kristie Sawicki says

      March 12, 2025 at 11:25 am

      5 stars
      This looks like such a great dinner for busy weeknights! Thanks!

      Reply
      • fitasamamabear says

        March 12, 2025 at 4:05 pm

        Yes! Great for nights when you just "can't" lol

        Reply
    2. Shar says

      July 28, 2023 at 1:09 am

      5 stars
      This slow cooker beef fajitas is irresistibly good and delicious! We can savor its flavors in every bite! So impressive!

      Reply
      • fitasamamabear says

        July 30, 2023 at 8:36 pm

        Love that you enjoyed it!

        Reply
    3. Genevieve says

      July 27, 2023 at 10:44 pm

      5 stars
      I hadn’t made fajitas in the slow cooker before and I have to say this is a game changer! They were so delicious, tender, and I didn’t have to stand over a smoky stove. I will be bookmarking this one for sure!

      Reply
      • fitasamamabear says

        July 30, 2023 at 8:35 pm

        It's SO much easier right?!

        Reply
    4. Allie says

      July 27, 2023 at 9:15 pm

      5 stars
      These fajitas turned out sooooo good for my Mexican themed night. The beef was tender and not overcooked. Thanks for the recipe!!

      Reply
      • fitasamamabear says

        July 30, 2023 at 8:35 pm

        Happy you enjoyed it!

        Reply
    5. Jane says

      July 27, 2023 at 8:10 pm

      5 stars
      I made this for dinner last night and my whole family loved it! It's so easy to make and the flavors are delicious. I'm definitely making it again.

      Reply
      • fitasamamabear says

        July 30, 2023 at 8:35 pm

        Glad to hear it!

        Reply
    6. Sarah says

      July 27, 2023 at 5:43 pm

      5 stars
      These were great, and so easy! I used flank steak and definitely kept the sweet onions in there. What a delicious and easy meal for a busy weeknight! Thank you for sharing!

      Reply
      • fitasamamabear says

        July 30, 2023 at 8:35 pm

        Definitely keep things easy!

        Reply
    7. Conchetta says

      July 01, 2023 at 7:11 am

      5 stars
      My family loves this, and the fajitas are so easy to put together! New favorite

      Reply
      • fitasamamabear says

        July 01, 2023 at 7:38 pm

        Amazing to hear! Simple is key.

        Reply
    8. Addison says

      May 11, 2023 at 6:47 pm

      5 stars
      These beef fajitas are so flavorful and great for dinner. My family really enjoyed this recipe.

      Reply
      • fitasamamabear says

        May 12, 2023 at 11:11 am

        Wahoo!

        Reply
    9. Jere Cassidy says

      May 11, 2023 at 5:57 pm

      5 stars
      What a winner. First of all, I agree with you that coming home and the house smelling like something delicious is cooking is so inviting. The family devoured the fajitas, and I totally loved how easy this meal was to make.

      Reply
      • fitasamamabear says

        May 12, 2023 at 11:11 am

        Haha it's the best feeling ever to come home to something ready!! Glad everyone loved it.

        Reply
    10. Kris says

      May 11, 2023 at 5:28 pm

      5 stars
      This was the perfect dinner to come home to! It was absolutely packed with flavor. Can't wait to make again!

      Reply
      • fitasamamabear says

        May 12, 2023 at 11:11 am

        Happy you all enjoyed it!

        Reply
    11. Gina says

      May 11, 2023 at 12:11 pm

      5 stars
      This was the perfect set it and forget it recipe for a busy day. Served it with tortillas or with salad greens and it was delicious either way.

      Reply
      • fitasamamabear says

        May 12, 2023 at 11:10 am

        It's a savior on busy nights for sure!

        Reply
    12. Lindsey says

      May 11, 2023 at 11:31 am

      5 stars
      These fajitas are a life saver! I throw this together in the morning before work and then, voila!, dinner is done when I get home! Your recipe is flavorful and I love the addition of the bone broth for flavor and health!

      Reply
      • fitasamamabear says

        May 12, 2023 at 11:10 am

        Honestly they save my sanity too, glad you liked them!

        Reply
    5 from 13 votes (1 rating without comment)

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