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Crockpot Chicken Fajitas + VIDEO

This slow cooker chicken fajitas recipe only has 5 ingredients: chicken, onions, bell peppers, diced tomatoes, and fajita seasoning. Quick and tasty, you can serve this healthy (low-carb, paleo, Whole30) fajita dish with your favorite accompaniments. Instructions to make this simple fajita recipe in the Instant Pot are also included. 

side view shot of slow cooker chicken fajitas on a white plate garnished with cilantro, avocado, and limes

Ingredients For Chicken Fajitas (ONLY 5)

There are only 5 ingredients in the easy fajita recipe! 

  1. Chicken: Boneless, skinless breasts (or thighs).
  2. Fajita Seasoning: My homemade fajita blend is included in the recipe box. If you have your own, feel free to use it. 
  3. Bell Peppers: 3 large bell peppers. I used green, red, and orange so it would be colorful. 3 bell peppers of the same color works just fine. 
  4. Onions: 1 large onion or 2 small onions. Don’t slice them too thin. 
  5. Tomatoes: 14.5-ounce can of diced tomatoes or your favorite salsa

collage of the chicken fajita ingredients

How To Make Chicken Fajitas In The Crock-Pot

Making chicken fajitas is very easy, especially when you use your slow cooker (Crock-Pot) or pressure cooker (Instant Pot). 

Slow Cooker

  1. Season the chicken with salt & pepper. Add the chicken & all the other ingredients to the slow cooker. Stir to mix well.
  2. Cook HIGH 2-3 hours or LOW 4-6.

Instant Pot 

  1. Turn the Instant Pot to sauté. Once hot, add the oil, onion, and bell pepper and cook 3-5 minutes until soft.
  2. Season the chicken with salt & pepper. Add the seasoned chicken, diced tomatoes, and all the other  seasonings to the pot. Stir to mix well. Close lid and seal valve. Set high pressure and cook 8 minutes. When cooking time is complete, quick release pressure.

before (slow cooker)

Chicken Breasts or Chicken Thighs?

Normally my go-to cut of chicken when I use my slow cooker is chicken thighs. I used chicken breasts here. I prefer to use breasts in particular with fajitas. You can also make these with boneless, skinless chicken thighs. If you do, add an additional 30 minutes to an hour of cook time for the slow cooker and 1 minutes for the pressure cooker. You need to do this because dark meat takes longer to cook than white meat. Since this recipe uses chicken breasts, it’s not a recipe that can sit on the WARM setting. This will overcook the chicken and dry out the meat. When the food is done cooking, turn off the appliance. 

after (slow cooker)

Homemade Fajita Seasoning

In the recipe box you will find my go-to homemade fajita seasoning. If you use it (which I hop you do) then technically this is recipe is more than 5 ingredients.  Hopefully you already have these spices in your pantry already. My fajita spice blend makes about 1/3 cup of seasonings. Personally, I make a big batch and keep it in my pantry.

overhead shot of slow cooker chicken fajitas on a white plate garnished with cilantro, avocado, and limes

How To Serve The Fajitas

Traditionally fajitas are served in corn or flour tortillas. I believe you should serve these fajitas according to your dietary restrictions. My go-to is lettuce wraps. Other suggestions are tortillas or over rice (regular, brown, or riced cauliflower). You can also use this as filling for burritos or even enchiladas. Popular garnishes for fajitas include cheese, guacamole, lettuce, salsa, sour cream, etc. 

side view shot of slow cooker chicken fajitas on a white plate garnished with cilantro, avocado, and limes

FAQs & Tips

Mexican Inspired Recipes

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overhead shot of slow cooker chicken fajitas on a white plate garnished with cilantro, avocado, and limes

Slow Cooker Chicken Fajitas

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

4.5 from 6 reviews

This slow cooker chicken fajitas recipe only has 5 ingredients! Quick and tasty, you can serve these fajitas with your favorite accompaniments. Low-carb, paleo, whole30 compliant, this easy chicken recipe can also be cooked in the Instant Pot.

  • Total Time: 3 hours 10 minutes
  • Yield: Serves 4

Ingredients

Units Scale
  • 2 pounds boneless, skinless chicken breasts, sliced into thin strips
  • 3 large bell peppers, sliced
  • 1 large onion or 2 small onions, sliced
  • 15 ounces diced tomatoes or salsa
  • 1/3 cup fajita seasonings (see below for homemade blend)
  • Salt & pepper to season the chicken
  • 3/4 cup low-sodium chicken broth (for Instant Pot only)

Homemade Fajita Seasoning

  • 2 tablespoons chili powder
  • 1 tablespoon cumin
  • 1 1/2 teaspoons salt (or more)
  • 1 1/2 teaspoon oregano
  • 1 teaspoon paprika
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1/2 teaspoon pepper

Instructions

Slow Cooker

  1. Season the chicken with salt & pepper. Add the chicken & all the other ingredients to the slow cooker. Stir to mix well.
  2. Cook HIGH 2-3 hours or LOW 4-6.

Instant Pot 

  1. Turn the Instant Pot to sauté. Once hot, add the oil, onion, and bell pepper and cook 3-5 minutes or until soft.
  2. Season the chicken with salt & pepper. Add the seasoned chicken, broth, diced tomatoes, and all the other  seasonings to the pot. Stir to mix well. Close lid and seal valve. Set high pressure and cook 8 minutes. When cooking time is complete, quick release pressure.

Notes

Do not let this sit on the WARM setting; the chicken will overcook and dry out.

  • Author: Shannon Epstein
  • Prep Time: 10 minutes
  • Cook Time: 3 hours

 

 

This post contains affiliate links. That means if you click on one of the product links, I might receive compensation. For more about my disclosure policy see here: https://fitslowcookerqueen.com/about/disclosure-policy/.

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Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

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Jenna

Wednesday 13th of December 2023

Do I have to double the Ingredients for the Fajita Seasoning to make 1/3 cup of spice or does the amounts below make up for 1/3 cup as the recipe calls for? Thanks so much in advance!

Shannon Epstein

Wednesday 13th of December 2023

Good question. You do not need to double the ingredients for the seasoning. What's listed in the recipe box is approximately 1/3 cup. Of course, you add more or less! Enjoy!

Kortni

Monday 27th of November 2023

The recipe was great, the whole family enjoyed it. However, there is no print option available. I had to copy everything into a document and then edit it and finally, print it for my recipe book so that we can enjoy this again.

Meghan

Saturday 23rd of September 2023

1st crockpot recipe of the year. Came out great.