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    Home » Real Food » Slow Cooker Recipes » Crockpot Steak Fajitas

    Crockpot Steak Fajitas

    By Kristen Chidsey | 30 Comments | Published June 4, 2019 | Updated April 24, 2021 *This post may include amazon links. As an Amazon Associate, I earn from qualifying purchases.

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    Skip the Mexican restaurant and let your slow cooker make steak fajitas for you! These Crock Pot Steak Fajitas come together with a few simple steps and are served up with all the flavor of a restaurant dish!

    Make Steak Fajitas right in the slow cooker! This recipe has all the delicious flavors of traditional fajitas minus the hassle. Dump everything into the crockpot and let it cook until tender and perfectly seasoned. 

    Crockpot Steak Fajitas come together with just a few simple ingredients and are served up with all the flavor of a restaurant dish. Pair them with Instant Pot Refried Beans and a side of Homemade Guacamole, for a delicious restaurant-quality dinner.

    Steak Faijtas on a wooden cutting board with fresh limes next to it.

    Slow Cooker Steak Fajitas are the perfect lazy and cheap way to enjoy Steak Fajitas any night of the week.

    This slow cooker steak recipe uses pantry staples, an inexpensive cut of meat, and takes just minutes to prepare.

    Notes on Ingredients

    • Steak: Because this is a recipe for crockpot steak fajitas, a less expensive cut of meat works great. Choose a cut of beef like flank steak, round steak, or sirloin steak.
    • Onions and Peppers: Use any variety of bell peppers and onions you like. This is also a great time to take a shortcut and use a bag of frozen peppers and onions.
    • Homemade Fajita Seasoning: Which is a simple blend of pantry staples, including chili powder, cumin, smoked paprika, salt, onion powder, and garlic powder.
    • Tomatoes with Diced Green Chiles: Be sure to use MILD if you don't want your crockpot fajitas to be too spicy.
    • Fresh Lime Juice and Zest: Don't overlook this! Adding the zest and juice of a fresh lime will wake up the flavors.

    Step-By-Step Instructions

    • Using a sharp knife, thinly slice your chosen cut of steak, against the grain, into ½ inch strips. Pro-tip: Place your steak into the freezer for 10-20 minutes--this makes it MUCH easier to slice.
    • Cut fresh peppers and onions into ½ inch strips.
    • Place the steak, peppers, and onions into the slow cooker. 
    Peppers, Onions, and Steak in Slow Cooker
    • Add in the fajita seasoning and toss to coat. 
    • Pour tomatoes over top and spread to cover the meat.
    • Cook on low for 6 hours or on high for 3-4 hours.
    • Once cooking time is finished, mix in the zest and juice of the limes and fresh chopped cilantro, to add brightness to these fajitas. 
    spoonful of Steak Fajita mixture.

    Serving Suggestions

    • For Traditional Fajitas, use a slotted spoon to drain off excess liquid and then serve the mixture on Homemade Flour Tortillas, with sour cream, cheese, and/or sliced avocado.
    • Serve the mixture and cooking liquid over Instant Pot Quinoa or Instant Pot Rice.
    • Use the steak fajita mixture to make an Easy Burrito Bowl.
    Steak Fajitas on Cutting Board.

    Storage

    Once cooled, any leftover steak fajita mixture can be stored in an airtight container for up to 4 days. You can also opt to freeze the mixture for up to 1 month.

    More Delicious Fajita Recipes

    • Vegetarian Fajitas
    • Honey Lime Chicken Fajitas
    • Instant Pot Steak Fajitas

    If you enjoyed these Crockpot Steak Fajitas, I would love for you to leave a comment and rating below. 

    Steak Fajitas on wooden plate

    Slow Cooker Steak Fajitas

    An easy recipe for Slow Cooker Steak Fajitas that uses an inexpensive cut of meat, staple pantry ingredients and tastes down right delicious!
    4.96 from 24 votes
    Print Pin Rate
    Course: Main Course
    Cuisine: Mexican
    Prep Time: 10 minutes
    Cook Time: 4 hours
    Total Time: 4 hours 10 minutes
    Servings: 6
    Calories: 271kcal
    Author: Kristen Chidsey

    Ingredients

    • 1 pound flank or sirloin steak sliced against the grain into ½ inch strips
    • 1 tablespoon fajita seasoning
    • 1 red bell pepper thinly sliced
    • 1 green bell pepper thinly sliced
    • 1 yellow bell pepper thinly sliced
    • 1 onion thinly sliced
    • 15 ounces can diced tomatoes with green chiles
    • 1 bunch fresh cilantro chopped (optional)
    • 2 limes juice and zest

    For Serving

    • tortillas, sour cream, Greek yogurt, shredded cheese, etc
    Prevents your screen from going dark while preparing the recipe.

    Instructions

    • Place the steak, peppers, and onions in a slow cooker. Season with fajita seasoning and toss to coat.
    • Pour tomatoes over top of mixture and spread out evenly.
    • Cook on low for 6 hours or on high for 3-4 hours.
    • Once cooking time is finished, mix in the zest and juice of the limes and cilantro if using.
    • Serve with a slotted spoon for fajitas or with the cooking liquid over rice or quinoa.

    Equipment Needed

    • 6-8 quart Slow Cooker

    Notes

    Peppers and Onions: Use any color of peppers or a variety of peppers as the recipe states. You can also opt to use a 16-ounce bag of frozen pepper and onion strips in place of fresh peppers and onions--no need to defrost!
    Leftovers: Once cooled, any leftover steak fajita mixture can be stored in an airtight container for up to 4 days. You can also opt to freeze the mixture for up to 1 month.
    For the Fajita Seasoning: use 1 teaspoon chili powder, ½ teaspoon cumin, ½ teaspoon smoked paprika (or regular paprika), ½ teaspoon salt, ¼ teaspoon onion powder, ¼ teaspoon garlic powder, and a dash of cayenne pepper.

    Nutrition

    Calories: 271kcal | Carbohydrates: 26g | Protein: 29g | Fat: 6g | Saturated Fat: 2g | Cholesterol: 68mg | Sodium: 421mg | Potassium: 928mg | Fiber: 7g | Sugar: 3g | Vitamin A: 6515IU | Vitamin C: 33.1mg | Calcium: 109mg | Iron: 4.6mg
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    About Kristen Chidsey

    Hi, I am Kristen, creator of A Mind "Full" Mom. I believe that making a wholesome family meal does not need to be hard or expensive! I love nothing more than to share with you delicious solutions for your hungry family.

    Reader Interactions

    Comments

    1. Rose

      March 06, 2022 at 9:11 am

      5 stars
      Hello,
      I think today will be the 3rd time I'll be making these fajitas in my crockpot. My husband loves these cooked in the crockpot even more than those cooked in a frying pan. I also appreciate that I don't have to get up with the chickens due to the fact it only takes 6 hours on low for these fabulous tasting fajitas to be fully cooked.

      Reply
      • Kristen Chidsey

        March 07, 2022 at 6:40 am

        I am thrilled to hear you these fajitas are becoming a regular! I love how easy they are to make myself.

        Reply
    2. cassidy

      March 27, 2019 at 11:46 am

      silly question, but can you use not frozen veggies as well???

      Reply
      • Kristen Chidsey

        March 27, 2019 at 1:37 pm

        I use frozen pepper and onion blend all the time--it works great 🙂

        Reply
    3. Brandi

      November 17, 2018 at 12:35 am

      5 stars
      We love fajitas! This recipe is so easy, almost set and forget kind of meal), slow cooker is such a time saver!

      Reply
      • Kristen Chidsey

        November 17, 2018 at 7:47 am

        It is almost TOO easy--which is perfect for busy nights.

        Reply
    4. April

      November 16, 2018 at 10:32 pm

      5 stars
      These came out soooooo flavorful and were a big hit with the whole family!

      Reply
      • Kristen Chidsey

        November 17, 2018 at 7:47 am

        I am so happy to hear that April! I love when a meal is a hit with the whole family.

        Reply
        • Kate

          March 11, 2021 at 9:48 am

          I'm looking for a recipe where I don't have to add tomatoes. Would this still work without them?

          Reply
          • Kristen Chidsey

            March 11, 2021 at 10:56 am

            I would use 1/2 cup of beer or stock to cook the meat in to replace the tomatoes.

            Reply
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