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Slow Cooker Chicken Fajitas are a 21 Day Fix recipe from Confessions of a Fit Foodie

Crock Pot Chicken Fajitas {21 Day Fix}

  • Author: NancyLynn Sicilia
  • Prep Time: 20 minutes
  • Cook Time: 6 hours
  • Total Time: 6 hours 20 minutes
  • Yield: 5 servings 1x
  • Category: Dinner
  • Method: Slow Cooker
  • Cuisine: Mexican


Crock Pot chicken fajitas are an easy and flavorful dinner. Made with lean chicken breast, tomatoes, peppers, onions, and homemade taco seasoning, this is a 21 Day Fix recipe you’ll love. 



  • 2 lbs boneless skinless chicken breasts
  • 1 (14.5 oz) can of tomatoes with green chili peppers or fire roasted tomatoes (I used fire roasted because that is what I had – YUM!)
  • 3 green bell peppers, sliced in thin strips
  • 1 large yellow onion, sliced in thin strips
  • 2 cloves minced garlic
  • 2 T of Homemade Taco Seasoning (click for the recipe)
  • 1/2 tsp salt
  • 1/2 pepper


  1. Pour 1/2 can of tomatoes in the Crock Pot.
  2. Top with 1/2 the bell peppers and onions; Sprinkle in garlic and add chicken breast on top of veggies.
  3. Season one side the chicken with 1/2 of taco seasoning, flip and sprinkle remaining tablespoon over the second half. Pour the rest of the tomatoes and veggies over top the chicken.
  4. Cover, cook on low heat for 6 hours or on high for 3-4.
  5. Remove chicken, cut into strips or shred. You can ladle out some of the broth if your fajitas are too soupy.
  6. Serve in warmed tortillas and top with fresh lime juice and Greek Yogurt or make a fajita bowl like we did! I used brown rice, fresh lime, avocado, cheese and Greek Yogurt.


Makes approximately 5 servings (about 1 1/2 cups each)

21 Day Fix: 1 RED, 1 GREEN

WW Green: 4 points per serving;  WW Blue: 0 points per serving;  WW Purple: 0 points per serving

Don’t forget to count your toppings!

Keywords: slow cooker, dinner, fajitas, mexican, dinner, meal prep, chicken, gluten-free, grain-free, high protein, low-carb