Craving a Tex-Mex classic without standing over the stove? Crockpot chicken fajitas are here to save the day. With bold flavors, juicy chicken, and perfectly cooked veggies—all made in one pot—this is the kind of recipe that makes weeknights a breeze. Whether you’re feeding a crowd or just meal prepping for the week, this slow-cooked comfort dish checks every box.
Ingredients in Crockpot Chicken Fajitas*
Chicken:
About 2 ½ pounds of chicken is perfect for serving 6 to 8 people. I usually go with boneless, skinless chicken breasts to keep it light, but boneless thighs work great too if you want something a little richer.
Seasonings:
For bold, smoky flavor, I mix together garlic powder, chili powder, cumin, onion powder, smoked paprika, oregano, salt, and a bit of black pepper. It’s the perfect blend to bring everything to life.
Peppers & Onion:
I like using a mix of red, yellow, and orange bell peppers for their sweetness and vibrant color. Feel free to toss in green peppers if that’s what you have. I typically use yellow onion, but white works just as well. Want a little heat? Swap in a jalapeño or poblano for one of the bell peppers.
Tomatoes & Green Chiles:
Fire-roasted diced tomatoes with green chiles add a nice depth of flavor and just the right touch of spice. One can is all you need.
Lime Juice:
A squeeze of fresh lime at the end brightens up all the flavors. It adds a pop of citrus that really balances out the richness of the spices.
Toppings:
Fajitas wouldn’t be complete without the extras! I love serving mine with warm flour tortillas, shredded cheese, guacamole, salsa or pico de gallo—and sometimes a dollop of sour cream for good measure.
How to Make Crockpot Chicken Fajitas
1. Season the Chicken
Start by rubbing your chicken with a blend of spices—think garlic powder, chili powder, cumin, onion powder, smoked paprika, oregano, salt, and black pepper. Coat both sides evenly so the flavor soaks in while it cooks.
2. Add Tomatoes and Chiles
Place the seasoned chicken in your slow cooker, then pour a can of fire-roasted diced tomatoes with green chiles over the top. Give everything a gentle stir to make sure the flavors are well-distributed.
3. Let It Cook
Pop the lid on and cook the chicken on low for about 5 hours or high for 3 hours, depending on how much time you’ve got.

4. Add Peppers and Onions
Once the chicken is nearly done, toss in your sliced bell peppers and onion. Stir everything together lightly, then cook for another 45 minutes. This gives the veggies time to soften without turning mushy.
5. Shred the Chicken
Take the chicken out of the crockpot and shred it using two forks—either in a bowl or right on a cutting board. Return the shredded chicken to the crockpot, squeeze in some fresh lime juice, and give it a good mix. Taste and adjust seasoning if needed.
6. Serve and Enjoy
Scoop the fajita mixture onto warm flour or corn tortillas, and pile on your favorite toppings—cheese, salsa, guac, sour cream, you name it. Dinner is done and delicious!
Recipe Tips
- Customize the Spice Level
If you like your fajitas with a bit of heat, throw in some sliced jalapeños or a poblano pepper along with the bell peppers and onions. You can also adjust the amount of chili powder and smoked paprika based on your preference. - Use Chicken Thighs for Extra Juiciness
While chicken breasts are lean and work well, chicken thighs will give you a juicier, richer flavor. You can easily swap them in for a more tender result! - Don’t Overcook the Veggies
When adding the peppers and onions, don’t let them cook for too long. They should be tender but still have a little crunch. Overcooking them can lead to mushy vegetables, so check them at the 45-minute mark. - Shred the Chicken with Ease
Shredding chicken after it’s cooked is a breeze when it’s done in the crockpot. It should pull apart effortlessly with two forks. For even easier shredding, use a hand mixer on low speed for a few seconds!
How to Serve Your Chicken Fajitas

Serving your crockpot chicken fajitas is just as fun as making them! Here are a few ideas to elevate your meal:
- Warm Tortillas
Start with soft, warm tortillas—flour or corn, depending on your preference. For extra flavor, try lightly toasting the tortillas in a dry pan for a minute or two before serving. - Top with Fresh Fixings
Add a generous sprinkle of shredded cheese, whether it’s cheddar, Monterey Jack, or a blend. For a zesty kick, load up on salsa, pico de gallo, or a scoop of fresh guacamole. Don’t forget a dollop of sour cream for that creamy finish. - Add Fresh Garnishes
To brighten things up, garnish with fresh cilantro leaves, a squeeze of lime juice, or even some thinly sliced red onion. These little touches can really bring everything together.
FAQs about Crockpot Chicken Fajitas
- Can I use frozen chicken for this recipe?
Yes, you can use frozen chicken! Just make sure to cook it for a bit longer—on low for 6-7 hours or high for 4 hours—to ensure it’s fully cooked through. - Can I make these fajitas with beef or pork instead of chicken?
Absolutely! You can swap the chicken for beef or pork. For beef, flank steak or skirt steak would work best. For pork, pork tenderloin or pork shoulder would be a great choice. - How do I make the fajitas spicier?
If you like it hot, add sliced jalapeños, serrano peppers, or a bit of extra chili powder or cayenne pepper. You can also drizzle some hot sauce over the top when serving. - Can I prepare these fajitas ahead of time?
Yes! You can prepare everything up to the cooking step, then store it in the fridge overnight. Just toss it into the crockpot the next day to cook. - What are some good side dishes to serve with fajitas?
Fajitas go great with sides like Mexican rice, black beans, grilled corn, or a simple avocado salad. You can also serve them with tortilla chips and salsa for an extra treat!
Final Thoughts
Crockpot chicken fajitas are the perfect solution for busy weeknights when you want something quick, flavorful, and satisfying. With just a few ingredients and minimal effort, you can have a meal that everyone will love. Whether you serve them on warm tortillas with all your favorite toppings or get creative with side dishes, these fajitas are sure to become a family favorite. Enjoy the simplicity, the bold flavors, and the fact that dinner practically cooks itself!
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Crockpot Chicken Fajitas
- Total Time: 5hours 10 Mins
Description
Easy and flavorful crockpot chicken fajitas made with tender chicken, bell peppers, and bold spices. Perfect for weeknight dinners or meal prep. Serve with warm tortillas and your favorite toppings!
Ingredients
- 2 ½ pounds chicken breast
- 2 ½ teaspoons garlic powder
- 2 teaspoons chili powder
- 1 teaspoon kosher salt
- 1 teaspoon onion powder
- ¾ teaspoon ground cumin
- ½ teaspoon freshly ground black pepper
- ¼ teaspoon smoked paprika
- ¼ teaspoon dried oregano
- 1 (10-ounce) can fire-roasted diced tomatoes with green chilies
- 3 bell peppers, sliced (any color)
- 1 medium yellow onion, sliced
- 1 tablespoon lime juice (about ½ lime)
- For serving: Corn or flour tortillas, sour cream, guacamole, salsa, shredded cheese
Instructions
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Season the chicken on both sides with garlic powder, chili powder, salt, onion powder, cumin, black pepper, smoked paprika, and oregano. Place it in a large slow cooker.
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Pour the diced tomatoes with green chiles on top of the chicken. Mix together and cover. Cook on low for 5 hours or on high for 3 hours.
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Add the bell peppers and onions, and continue cooking for an additional 45 minutes.
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Remove the chicken using a slotted spoon and shred.
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Add the chicken back to the crockpot and stir in the lime juice.
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Serve with warm corn or flour tortillas, shredded cheese, salsa, guacamole, and sour cream.
Notes
- If you prefer crisp bell peppers and onions, add them to the slow cooker and cook for only 30 minutes.
- For a leaner option, use boneless and skinless chicken breasts. For a juicier option, use boneless and skinless chicken thighs.
- Any color of bell peppers will work. To add some spice and heat, add in some jalapeños and/or poblano peppers.
- Prep Time: 10 Mins
- Cook Time: 5hours
- Category: Main Dish
- Method: crockpot
- Cuisine: American
Keywords: Crockpot Chicken Fajitas