Slow Cooker Chicken Fajitas
Looking for a quick and easy dinner idea? Slow Cooker Chicken Fajitas offers a vibrant blend of flavors with minimal effort. This simple recipe becomes a family favorite, perfect for busy weeknights or gatherings with friends.
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Why You’ll Love This Slow Cooker Chicken Fajitas

This dish is packed with juicy chicken, colorful bell peppers, and spices that excite the taste buds. The slow cooker does all the work for you, infusing the chicken with rich flavors while keeping it tender. You’ll love how versatile it is, enjoy it in a tortilla, over rice, or even on its own. Plus, it’s a crowd-pleaser suitable for any occasion!
How to Make Slow Cooker Chicken Fajitas
Ingredients:
- 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 and pepper to season the chicken
- 3/4 cup low-sodium chicken broth (for Instant Pot only)
Fajita Seasoning:
- 2 tablespoons chili powder
- 1 tablespoon cumin
- 1 1/2 teaspoons salt (or more to taste)
- 1 1/2 teaspoon oregano
- 1 teaspoon paprika
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1/2 teaspoon pepper
Step-by-Step Instructions:
- Season the Chicken: Start by seasoning the chicken strips with salt and pepper.
- Add Ingredients to Slow Cooker: Place the seasoned chicken in the slow cooker. Add the sliced bell peppers, onions, diced tomatoes or salsa, and fajita seasonings. Stir to combine all ingredients well.
- Cook: Set your slow cooker to HIGH for 2-3 hours or LOW for 4-6 hours. If using an Instant Pot, add the chicken broth and set to cook per your preferred method.
- Shred and Serve: Once cooked, shred the chicken in the slow cooker and mix it with the peppers and other ingredients before serving.
How to Serve Slow Cooker Chicken Fajitas
When it’s time to serve, there are many tasty options! You can pile the chicken and veggies into warm flour or corn tortillas. Top with your favorites such as avocado, cheese, sour cream, or fresh cilantro. Alternatively, serve it over rice or quinoa for a hearty meal. You can even create a fajita bowl, layering ingredients for a colorful and delicious dish.
How to Store Slow Cooker Chicken Fajitas
To store leftovers, let them cool completely before placing them in an airtight container. The chicken fajitas can be kept in the refrigerator for up to 4 days. For longer storage, consider freezing them in plastic freezer bags or airtight containers for up to 3 months. Just be sure to label the containers with the date for easy tracking!
Tips to Make Slow Cooker Chicken Fajitas Perfect
- Use Fresh Ingredients: Fresh bell peppers and onions not only bring color but also vibrant flavors. Avoid pre-cut veggies if possible.
- Customize Your Heat: Adjust the spice level to your preference. If you prefer spicier fajitas, use jalapeños or add hot sauce.
- Experiment with Proteins: Feel free to substitute chicken with beef, turkey, or even a meat-free option like tofu for a plant-based meal.
Flavor Variations
- Spicy Fajitas: Add extra chili powder or fresh jalapeños for more heat.
- Citrus Twist: Squeeze fresh lime juice over the fajitas before serving to enhance the flavor.
- Vegetarian Option: Replace the chicken with a mix of mushrooms, zucchini, and squash for a delightful vegetarian version.
Pro Tips for Success
- Don’t Overcrowd the Slow Cooker: Ensure there’s enough space for the ingredients to cook evenly.
- Adjust Cooking Time: Depending on your slow cooker, cooking times can vary. Check the chicken at the lower end of the time range to avoid overcooking.
- Use a Meat Thermometer: Ensure the chicken reaches an internal temperature of 165°F for safe consumption.
FAQs About Slow Cooker Chicken Fajitas
Can I use frozen chicken?
Yes, you can use frozen chicken breasts, but ensure they are cut into strips. Increase the cooking time to 4-6 hours on HIGH, as it will take longer for frozen chicken to cook through.
Can I make this recipe in advance?
Absolutely! You can prep the ingredients a day before and store them in the fridge. Just add everything to the slow cooker in the morning, and enjoy a delicious dinner when you get home.
What can I serve with chicken fajitas?
Chicken fajitas pair well with rice, beans, salads, or corn on the cob. You can also serve them with chips and salsa for a fun appetizer!
Final Thoughts
Slow Cooker Chicken Fajitas are a delicious and hassle-free meal perfect for families and gatherings. The blend of vibrant flavors and tender chicken will leave everyone asking for seconds. Whether you follow the recipe as is or add your unique twist, it is sure to become a favorite in your household. Enjoy your flavorful adventure in cooking!

Slow Cooker Chicken Fajitas
Ingredients
Method
- Season the chicken strips with salt and pepper.
- Place the seasoned chicken in the slow cooker. Add the sliced bell peppers, onions, diced tomatoes or salsa, and fajita seasonings. Stir to combine all ingredients well.
- Set your slow cooker to HIGH for 2-3 hours or LOW for 4-6 hours. If using an Instant Pot, add the chicken broth and set to cook per your preferred method.
- Once cooked, shred the chicken in the slow cooker and mix it with the peppers and other ingredients before serving.
