Name: Slow Cooker Chicken Fajitas
Prep time: 10 min
Cook time: 240 min
Total time: 250 min
Ingredients: 650 g Chicken breast; 1 Red bell pepper, deseeded and sliced into wedges; 1 Yellow bell pepper, deseeded and sliced into wedges; 1 Green bell pepper, deseeded and sliced into wedges; 2 Large onions, peeled and wedged; 2 tsp Oil; 1 tsp Chili powder; 1 tsp Ground cumin; 2 tsp Paprika; 1/4 tsp Cayenne pepper; 1/2 tsp Garlic powder; 1 tsp Sea salt; 1 tsp Ground black pepper

These Slow Cooker Chicken Fajitas take just 10 minutes to prep and offer bold, flavorful results that feel like a restaurant-quality meal. The secret? Your trusty slow cooker does all the hard work, turning simple ingredients into tender, juicy chicken and perfectly softened peppers.

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I love this easy chicken fajitas recipe because it’s hands-off, healthy, and incredibly versatile. Whether it’s a busy weeknight or you’re meal prepping for the week ahead, this dish is packed with bold Mexican-inspired flavors and requires almost no effort. Trust me, after trying this once, it’ll become your go-to dinner hack.

Why This Slow Cooker Chicken Fajitas Is a Game-Changer

Time-saver: Active prep time is just 10 minutes.
Minimal cleanup: Everything cooks in one pot, so dishes are a breeze.
Set it and forget it: The slow cooker does all the work. Just come back when it’s time to eat.
Perfectly tender: Slow cooking makes the chicken incredibly juicy while infusing it with spices.
Customizable: Add peppers later if you want them crunchy or keep them soft for a melt-in-your-mouth experience.

Equipment You’ll Need for This Slow Cooker Chicken Fajitas

Your slow cooker is the star of the show here. Any standard 4-6 quart slow cooker will work perfectly, but here are a few tips for getting the most out of your equipment:

Slow cooker features: If your slow cooker has programmable settings, set it to HIGH for 3 hours or LOW for 5-6 hours.
Budget-friendly options: No need for anything fancy. Even a basic model gets the job done beautifully.
Pro tip: For easy cleanup, use slow cooker liners. They’re a lifesaver when it comes to reducing post-dinner mess.

Simple Ingredients for Slow Cooker Chicken Fajitas

This recipe uses straightforward ingredients you likely already have on hand. Here are the key players:

Chicken breast: Lean and protein-packed, chicken breast becomes ridiculously tender after slow cooking.
Peppers: A trio of red, yellow, and green bell peppers adds sweetness and color. Pre-cut strips can save even more time.
Seasonings: A robust blend of paprika, cumin, garlic powder, and chili powder forms the flavor base. Adjust the cayenne pepper to taste if you like it less spicy.
Onions: Large onion wedges soften beautifully in the slow cooker, adding natural sweetness to the dish.

Slow Cooker Chicken Fajitas Recipe Details

Prep Time: 10 minutes
Cook Time: 4 hours
Total Time: 4 hours 10 minutes
Servings: 4
Difficulty: Easy

Ingredients for Slow Cooker Chicken Fajitas

650 g (1.5 lb) Chicken breast
1 Red bell pepper, deseeded and sliced into wedges
1 Yellow bell pepper, deseeded and sliced into wedges
1 Green bell pepper, deseeded and sliced into wedges
2 Large onions, peeled and wedged
2 tsp Oil
1 tsp Chili powder
1 tsp Ground cumin
2 tsp Paprika
1/4 tsp Cayenne pepper (optional for spice)
1/2 tsp Garlic powder
1 tsp Sea salt
1 tsp Ground black pepper

How to Make Slow Cooker Chicken Fajitas

Place the chicken breasts, peppers, and onions in your slow cooker.
Drizzle with the oil, then sprinkle the chili powder, cumin, paprika, cayenne, garlic powder, salt, and pepper evenly over the top.
Cover and cook on HIGH for 3 hours or on LOW for 5-6 hours.
Check to ensure the chicken is fully cooked (internal temperature should reach 165°F/74°C). Carefully remove the chicken, slice it, and return it to the slow cooker.
Optional: Drain some of the excess liquid if you prefer a less wet mixture.
Serve warm with tortillas, toppings, or over rice or salad for a healthy meal.

Jake’s Tips for the Best Slow Cooker Chicken Fajitas

Don’t overcrowd the slow cooker: Arrange ingredients in an even layer to ensure even cooking.
Add peppers late: If you prefer crisp-tender peppers, add them in the last 30 minutes of cooking.
Make it ahead: Pre-assemble the ingredients in a freezer bag and freeze. Thaw overnight and dump it into the slow cooker in the morning.
Meal prep: This recipe reheats beautifully and makes great leftovers. Store portions in the fridge for up to 4 days.
Reheat tip: A quick microwave warm-up or a few minutes in a skillet will bring everything back to life.

Easy Slow Cooker Chicken Fajitas Variations

Vegetarian option: Swap the chicken for hearty portobello mushrooms or a can of jackfruit for a plant-based twist.
Low-carb version: Serve the fajitas in lettuce wraps or over cauliflower rice for a keto-friendly meal.
Extra heat: Add an extra pinch of cayenne or a diced jalapeño for ultra-spicy chicken fajitas.
Cheesy twist: Toss in a handful of shredded cheese at the end and let it melt into creamy perfection.

Slow Cooker Chicken Fajitas FAQs

Can I use chicken thighs instead of breasts?

Absolutely! Chicken thighs are more forgiving and stay juicy even with longer cooking times. Just check for doneness before serving.

How do I avoid soggy peppers?

If you prefer your peppers to have some crunch, add them in the last 30 minutes of cooking instead of at the beginning.

Can I make this ahead of time?

Yes! Assemble all the ingredients in a freezer bag, freeze, and then thaw overnight before cooking.

What are the best toppings for chicken fajitas?

Go classic with sour cream, guacamole, shredded cheese, and salsa. Or keep it fresh with a squeeze of lime, chopped cilantro, and diced tomatoes.

Is this recipe freezer-friendly?

Definitely! Cooked chicken fajita mixture can be portioned into freezer-safe bags and frozen for up to 3 months.

If you’re looking for a flavorful, no-fuss dinner option, Slow Cooker Chicken Fajitas truly deliver. Ready to simplify your weeknight meals? Give this recipe a try, and let me know in the comments: What’s your favorite topping or twist for fajitas?