This family friendly recipe, Crock Pot Chicken Fajitas, is super simple to put together and requires just a few ingredients for an easy weeknight dinner. It freezes well too!
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I love this chicken fajita recipe for an easy, hands off weeknight dinner. All you have to do is cut the peppers and onions, throw everything together and let the slow cooker do its thing.
This is a great make ahead freezer meal! Just prep the veggies and add everything to a freezer safe gallon size bag. Freeze up to 5 months. When you’re ready to make it, thaw the bag in the refrigerator for 24 hours, dump the contents into the crock pot and cook on low 5 hours. So easy!

What you’ll need
- Crock Pot
- Chicken breast (about 3-4) or chicken tenderloins
- 1 packet taco or fajita seasoning
- Olive oil
- Bell peppers and an onion
- To serve- flour or corn tortillas
- Your favorite toppings such as shredded cheese, avocado, sour cream, lettuce and diced tomatoes

How to make it
Step 1: Prep the chicken
Slice the chicken breasts into strips, or if you prefer, leave them whole to shred after cooking. Add the chicken to the bottom of a 6–8 quart Crock Pot.

Step 2: Slice the veggies
Cut the bell peppers and onions into thick strips. (Go slightly larger than usual so they hold their shape during slow cooking.) Add the sliced veggies to the Crock Pot with the chicken.
Optional Add-ins: Sliced mushrooms, jalapeños, or any other fajita-friendly ingredients you love!

Step 3: Season and stir
Drizzle olive oil over the top, then sprinkle in a packet of taco or fajita seasoning. Toss everything gently to coat the chicken and veggies evenly.
Step 4: Slow cook
Cover and cook on low for 5 hours or high for 2½ hours, until the chicken is cooked through and tender.

Step 5: Shred and serve
If using whole chicken breasts, shred them in the Crock Pot using two forks. Stir everything together and serve warm in tortillas, taco shells, or over rice bowls with your favorite toppings!

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Slow Cooker Chicken Fajitas
Equipment
Ingredients
- 2 pounds chicken breast
- 1 1 ounce packet taco or fajita seasoning
- 1 tablespoon olive oil
- 2 bell peppers sliced
- 1 onion sliced
- Flour or corn tortillas for serving
- Toppings such as shredded cheese, avocado, sour cream, lettuce and diced tomatoes
Instructions
- Prep the chicken: Slice the chicken breasts into strips, or if you prefer, leave them whole to shred after cooking. Add the chicken to the bottom of a 6–8 quart Crock Pot.
- Cut the bell peppers and onions into thick strips. (Go slightly larger than usual so they hold their shape during slow cooking.) Add the sliced veggies to the Crock Pot with the chicken. Optional Add-ins: Sliced mushrooms, jalapeños, or any other fajita-friendly ingredients you love!
- Season and stir: Drizzle olive oil over the top, then sprinkle in a packet of taco or fajita seasoning. Toss everything gently to coat the chicken and veggies evenly.
- Cover and cook on low for 5 hours or high for 2½ hours, until the chicken is cooked through and tender.
- Shred and serve: If using whole chicken breasts, shred them in the Crock Pot using two forks. Stir everything together and serve warm in tortillas, taco shells, or over rice bowls with your favorite toppings!