Fajita seasoning, bell peppers, onions, and chicken are all you need to make this delicious and easy 4 Ingredient Chicken Fajitas.

To make Chicken Fajitas in your Crockpot, simply layer the ingredients, sprinkle with seasoning, and let it slow cook on low for 4 hours. The result? Perfectly tender fajitas ready to enjoy.

This Chicken Fajitas recipe is just as mouthwatering as 5 Ingredient Slow Cooker Steak Fajitas, offering an easy preparation process and requiring only a few ingredients to satisfy your hunger fully.

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Can I Use Frozen Chicken for These Chicken Fajitas?

Absolutely not! Always start with thawed chicken to ensure it cooks evenly and holds the seasoning well. Using frozen chicken can mess with the cooking time and might just make your dish a soggy disappointment.

4 Ingredient Crockpot Chicken Fajitas Ingredients

• 1 batch of homemade fajita seasoning (about 4 tbsp) or store-bought fajita seasoning
• 4 large bell peppers (any color), sliced into strips
• 4 onions, sliced into strips
• 1 ½ lbs (680g) boneless skinless chicken thighs, cut into strips

Optional for Serving:

• Tortillas
• Sour cream
• Guacamole
• Shredded cheese
• Salsa
• Cilantro
• Diced jalapeno

Homemade Fajita Seasoning (optional):

• 4 tsp chili powder
• 2 tsp ground cumin
• 2 tsp paprika
• 2 tsp granulated sugar (optional)
• 1 tsp garlic powder
• 1 tsp onion powder
• ¼ to ½ tsp cayenne pepper
• ½ to 1 tsp salt

How To Make 4 Ingredient Crockpot Chicken Fajitas

1. Prep the Seasoning: Combine all the fajita seasoning ingredients in a bowl. Mix well until everything is evenly distributed. Alternatively, you can use a pre-made store-bought fajita seasoning.
2. Layer the Ingredients: Start by placing half the bell peppers and onions in your crockpot. Add half the chicken strips over them. Sprinkle half of your chosen fajita seasoning on top.
3. Repeat Layering: Layer the remaining bell peppers, onions, and chicken. Top with the rest of the fajita seasoning.
4. Set to Cook: Turn your crockpot to low and let it cook for 4 hours. The low heat will infuse the chicken and vegetables with the spicy seasoning.
5. Remove Excess Liquid: After cooking, take out any excess liquid with a glass measuring cup. This step ensures the fajitas are not too soupy.
6. Serve with Style: Dish out the fajitas in tortillas or atop a bed of rice. Don’t forget the toppings like sour cream and guacamole for that perfect finish.

Recipe Tips

• Pre-Sauté Veggies: Jumpstart your veggies by sautéing them before they hit the crockpot. This little workout for your skillet isn’t just for show—it caramelizes the sugars, giving your fajitas a subtle sweetness and robust flavor.
• Deglaze for Extra Oomph: After browning the chicken, deglaze your pan with a splash of chicken broth or lime juice. This fancy chef move scrapes up tasty bits from the pan, which you can then pour into the crockpot for added flavor.
• Sharp Knife, Happy Life: Keep your knife sharp when slicing your ingredients. A sharp knife isn’t just safer; it’ll make your chopping faster and more precise, keeping your veggies from turning into a tear-jerking, mushy mess.
• Thicken It Up: If your fajitas are swimming in juice, mix a tablespoon of cornstarch with water and stir it into the crockpot during the last 30 minutes of cooking. It’s like magic for your sauce, thickening it up nicely without diluting the flavor.

Recipe Variations

• Citrus Twist: Swap out some of your bell peppers for a mix of orange, lemon, and lime slices. Cooking these with the chicken infuses a zesty citrus kick that brightens the whole dish, making your taste buds do the salsa.
• Beer Me Up, Scotty: Pour half a cup of your favorite lager over the chicken and veggies before cooking. The beer not only tenderizes the chicken but adds a malty depth to the fajitas—cheers to that!
• Sweet and Heat: Add a tablespoon of honey and a teaspoon of chipotle chili powder to the mix for that perfect sweet-heat balance. It’s like a flavor rollercoaster for your mouth but way more fun than waiting in line at the amusement park.

What To Serve With Chicken Fajitas

Serve your 4 Ingredient Chicken Fajitas with quinoa salad tossed with lime vinaigrette, grilled zucchini slices, charred bell pepper coulis, garlic herb queso fresco, and zesty lime wedges.

You can also pair these fajitas with crunchy jicama sticks and a smooth mango crema for a unique twist.

How To Store Leftover Chicken Fajitas

In The Fridge:

Store leftover Chicken Fajitas in an airtight container to keep them fresh. Place them in the refrigerator immediately after cooling; they will last for up to 3 days. Ensure the container is sealed well to maintain flavor and prevent drying out.

In The Freezer:

Chicken Fajitas are best enjoyed fresh and are not recommended for freezing. Freezing can affect the texture of the bell peppers and onions, making them soggy and less enjoyable when reheated.

How To Reheat Leftover Chicken Fajitas

Reheat your leftover Chicken Fajitas in a skillet over medium heat until they are thoroughly warmed. This method helps to keep the chicken juicy and the vegetables crisp.

Alternatively, you can warm them in a microwave for about 2 minutes, stirring halfway through to ensure even heating.

Check out More Slow Cooker Chicken Recipes:

• 4 Ingredient Crockpot Chicken and Dumplings
• Slow Cooker Jerk Chicken
• Malaysian Chicken Curry In Slow Cooker
• Slow Cooker Apricot Chicken Curry