Make a full meal with little prep with this Crockpot Chicken Fajitas recipe.  

With just a little fajita seasoning and some onion and peppers, you can turn boneless and skinless chicken breasts into a flavorful main dish with distinctly Mexican flavors. This chicken is perfect for stuffing, topping, or just serving as a simple and easy main dish. 

Crock-Pot chicken fajitas on a blue plate with sour cream cheese and Guacamole in the background

Crockpot Chicken Fajitas


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Best Crockpot Fajitas

  • Everyone loves fajitas, especially the grand production of presenting them, sizzling and steaming, fresh from the kitchen. The difference is that these crockpot fajitas are made without all the fuss and muss of stovetop cooking. Just ‘set it and forget it’ while enjoying some time to prepare other things, like Texas Caviar or a side of Mexican Corn Salad.
  • Cooked long and slow in the crockpot, these chicken breasts will absorb the fajita spice and all the yummy juices of the peppers and onions. 
  • What’s more, is that all the ingredients in this recipe are so healthy (and low carb).  
  • These chicken fajitas are delicious served with some homemade salsa, and then topped with shredded cheese. Use the chicken to top a caesar salad, or add them to a tortilla with some cheese, black beans, and salsa for a filling wrap.  

Ingredients for Crock-Pot chicken fajitas on a marble board

Ingredients & Variations

CHICKEN Choose boneless, skinless chicken breasts for this recipe. Fresh or frozen breasts will do. Slice the chicken into strips. 

FAJITA SPICE Fajita spice is a combination of cayenne pepper, paprika, sugar, chili powder, cayenne, cumin, garlic, and more. It has a bit of spicy kick to it. Pre-mixed fajita can easily be found in the Mexican section of the supermarket. The breasts can also be seasoned with taco seasoning. 

THE VEGETABLES It seems like all the colors of the pepper world are added to this chicken dish – red, green, and yellow. Remember to slice them into strips and layer them on top of the chicken. 

VARIATIONS After the chicken has cooked, make a plate of sauteed mushrooms, shredded lettuce, diced tomatoes, sliced black olives or cucumbers, jalapenos. Make another plate of shredded Monterey Jack, cheddar cheese, or crumbled cotija cheese. Make some refried beans or black beans. Add a plate of salsa, sour cream, and guacamole. Place all of these out on the table with some tortillas and everyone can make their own wraps. 

Raw veggies in a crock pot and Crock-Pot chicken fajitas in a crock pot

How to Make Crockpot Chicken Fajitas

Make chicken fajitas so easily in the crockpot. 

  1. Slice the chicken into strips and add to crockpot. 
  2. Season with fajita seasoning and add bell peppers and onions. 
  3. Cook (per the recipe below).

Serve on top of tortillas with a side of rice-a-roni for the perfect meal. 

Crock-Pot chicken fajitas in a blue bowl with salsa guacamole cilantro cheese and sour cream on the side

Tips for an Easy Crockpot Meal

Crockpots are so versatile and this crockpot recipe is super adaptable. Short on time? Crank up the temperature to high and cook for only two hours. Or, cook four to six hours like the recipe states. Either way, this easy crockpot fajita recipe will turn out perfectly every time!

Freeze any leftovers in an air-tight container. Leftover breasts are great for stuffing into sandwiches or topping salads. They will keep in the freezer for 3 months. 

More Delicious Mexican Meals

Crock-Pot chicken fajitas in a blue bowl with salsa guacamole cilantro cheese and sour cream on the side
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Crockpot Chicken Fajitas

Tender chicken and juicy peppers cooked up effortlessly in the slow cooker.
Prep Time 10 minutes
Cook Time 4 hours
Total Time 4 hours 10 minutes
Servings 4 servings
Author The Shortcut Kitchen



  • 1 pound chicken breasts boneless, skinless
  • 1 packet fajita seasoning
  • 1 green bell pepper
  • 1 yellow bell pepper
  • 1 red bell pepper
  • 1 onion


  • Place sliced chicken in the bottom of the crockpot.
  • Pour the fajita seasoning on top of the chicken.
  • Slice up the bell peppers and onions and place on top of the chicken and seasoning.
  • Cook on low for 4-6 hours.
  • Serve on tortillas with your favorite toppings!
4.86 from 35 votes↑ Click stars to rate now!
Or to leave a comment, click here!

Nutrition Information

Calories: 179kcal | Carbohydrates: 12g | Protein: 25g | Fat: 3g | Cholesterol: 72mg | Sodium: 841mg | Potassium: 637mg | Fiber: 3g | Sugar: 4g | Vitamin A: 1955IU | Vitamin C: 123.8mg | Calcium: 18mg | Iron: 1.4mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Main Course
Cuisine Mexican, Tex-Mex

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    1. We haven’t doubled this recipe but it shouldn’t affect the cooking time. Just be sure to check your chicken to make sure it is fully cooked before serving!

    1. We’ve only made the recipe as directed but that shouldn’t be a problem. Let us know how it turns out Sandy!

    1. The ingredients call for 1 green bell pepper, 1 yellow bell pepper and 1 red bell pepper. Enjoy Kay!

    1. I haven’t tried it with frozen chicken. According to Crock Pot, frozen or partially frozen foods require a longer cook time in a slow cooker than the recipe indicates for a stovetop or oven. Using an instant read thermometer is recommended to ensure meat is cooked through and tender. Frozen meats can be cooked in a slow cooker, however, it is best to use the following guidelines: Add at least 1 cup of warm liquid to the stoneware before placing meat in the stoneware. Do not preheat the slow cooker. Cook recipes containing frozen meats for an additional 4 to 6 hours on low, or an additional 2 hours on high.

    1. While I have only tried it as written, you can usually convert 4-6 hours on low to 1 1/2 – 2 1/2 hours on high.

  1. These recipes look and sound absolutely delicious. Plus they look easy to fix. Im ALL about easy and cheap. Looking forward to fixing them.

        1. Amanda, I usually slice the chicken about in about 1/4 inch slices. It’s a little thicker slices than the pepper usually. The exact size isn’t critical to this recipe. Enjoy the Fajitas!!