🌯 Easy Slow Cooker Chicken Fajitas
🕐 Time
- Prep: 15 minutes
- Cook: 4–6 hours
- Servings: 4–6
🛒 Ingredients
For the chicken:
- 1½–2 lb (700–900 g) boneless, skinless chicken breasts or thighs
- 2 bell peppers, sliced
- 1 large onion, thinly sliced
- 3 cloves garlic, minced
- 1 can (14–15 oz / 400 g) diced tomatoes, drained
- 2 tablespoons lime juice
- 1 tablespoon olive oil
Fajita seasoning:
- 2 teaspoons chili powder
- 1½ teaspoons ground cumin
- 1 teaspoon paprika
- 1 teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon dried oregano
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ¼ teaspoon cayenne pepper, optional for extra heat
For serving:
- Flour or corn tortillas
- Fresh lime wedges
- Chopped fresh cilantro
- Sour cream
- Shredded cheese
- Sliced avocado or guacamole
- Salsa
👩🍳 Step-by-Step Instructions
1. Prepare the vegetables
Wash the bell peppers and remove the seeds. Slice the peppers into thin strips.
Peel and thinly slice the onion. Mince the garlic.
2. Make the fajita seasoning
In a small bowl, combine the chili powder, cumin, paprika, garlic powder, onion powder, oregano, salt, black pepper, and cayenne pepper if you’re using it.
Mix everything together well.
3. Add the vegetables to the slow cooker
Place the sliced onions and peppers in the bottom of your slow cooker.
Add the minced garlic.
4. Add the chicken
Place the chicken breasts or thighs on top of the vegetables.
You can leave the chicken whole because you’ll shred or slice it after cooking.
5. Add the tomatoes
Pour the drained diced tomatoes over the chicken.
Then drizzle the lime juice and olive oil over everything.
6. Add the seasoning
Sprinkle the fajita seasoning evenly over the chicken and vegetables.
For the best flavor, gently rub some of the seasoning onto the top of the chicken.
7. Cook
Cover the slow cooker with its lid.
Cook on:
- LOW: 5–6 hours
- HIGH: 3–4 hours
The chicken is done when it reaches an internal temperature of 165°F / 74°C and is tender enough to shred easily.
Try not to overcook it, especially if you’re using chicken breast.
8. Shred the chicken
Remove the cooked chicken from the slow cooker and place it on a plate or cutting board.
Use two forks to shred the chicken into bite-sized pieces.
Alternatively, you can slice the chicken into strips.
9. Mix everything together
Return the shredded chicken to the slow cooker.
Stir it together with the cooked peppers, onions, tomatoes, and juices.
Let it sit for about 5–10 minutes with the slow cooker on its warm setting so the chicken can absorb the flavors.
10. Warm the tortillas
Heat your tortillas in a dry skillet for about 20–30 seconds per side, or warm them in the microwave.
Warm tortillas make the fajitas much easier to fold and give them a better texture.
11. Assemble your fajitas
Place some of the chicken and vegetable mixture in the center of each tortilla.
Top with your favorite toppings, such as:
- Shredded cheese
- Sour cream
- Guacamole
- Salsa
- Fresh cilantro
- A squeeze of lime
Fold the bottom of the tortilla upward, then fold in the sides and roll it up.
⭐ Tips for the Best Fajitas
- Chicken thighs stay especially juicy and flavorful in a slow cooker.
- Don’t add too much liquid—the chicken and vegetables release their own juices while cooking.
- For spicier fajitas, add jalapeño, extra cayenne, or hot salsa.
- For a smoky flavor, use smoked paprika instead of regular paprika.
- Add fresh lime juice after cooking as well as before serving for a brighter flavor.
- If you want less liquid in your fajitas, remove the lid and let the mixture cook on HIGH for about 10–15 minutes after shredding the chicken.
🍽️ What to Serve With Them
These fajitas are great with Mexican rice, black beans, corn, a simple green salad, tortilla chips, guacamole, or fresh salsa.
Storage: Refrigerate leftovers in an airtight container for up to 3–4 days. Reheat gently in a skillet or microwave.