One day when I was juggling errands and housework I needed a meal that practically made itself so I tossed some chicken bell peppers onions and spices into my slow cooker and let it do the magic. By dinnertime the chicken was juicy the peppers were tender and the whole kitchen smelled like a sizzling fajita skillet at a restaurant.

Now slow cooker chicken fajitas are one of my easiest and most flavorful dinner solutions and they’re packed with bold spices colorful veggies and tender strips of chicken and perfect for piling into warm tortillas or serving over rice.

Ingredients

Here’s what I use for this recipe. You can always make substitutions if you prefer!
Boneless chicken breasts or thighs – The protein that becomes juicy and flavorful during slow cooking
Bell peppers – A mix of red yellow and green for vibrant color and sweetness
Onion – Adds savory depth and texture
Fajita seasoning – A bold spice blend that gives classic Tex-Mex flavor
Lime juice – Adds a bright fresh finish to balance the richness
Garlic – Brings a warm aromatic base
Olive oil – Helps coat everything for even cooking
Salt and pepper – Enhances all the other flavors

Tools You’ll Need

Slow cooker – The key to tender juicy chicken and perfectly cooked veggies
Knife and cutting board – To slice the chicken and vegetables
Tongs or fork – To shred or serve the cooked chicken and peppers
Measuring spoons – For seasoning and oil accuracy
Mixing bowl – Optional for coating the chicken and veggies before adding to the slow cooker

Instructions

Step 1:

I start by slicing the chicken bell peppers and onions into strips and then I add them all to the slow cooker

Step 2:

I sprinkle over the fajita seasoning add minced garlic drizzle with olive oil and squeeze in the fresh lime juice then I toss everything gently to coat

Step 3:

I cover and cook on low for 5 to 6 hours or on high for 2 to 3 hours until the chicken is cooked through and tender

Step 4:

Once the chicken is done I remove it from the slow cooker and slice or shred it if needed and then I stir it back into the peppers and onions

Step 5:

I serve everything hot in warm tortillas or over rice and top with whatever fixings I’m craving like avocado cheese or sour cream

Tips

Use different colored peppers for visual appeal and flavor balance

Add a can of diced tomatoes with green chiles for extra zest

If you like crispy edges finish the cooked chicken in a hot skillet before serving

Ways to Serve

Serve in warm flour or corn tortillas with your favorite toppings

Spoon over rice or cauliflower rice for a low-carb bowl

Add to a salad or make fajita quesadillas with leftovers

Frequently Asked Questions

Can I freeze slow cooker chicken fajitas?

Yes just cool completely and store in freezer-safe bags for up to 3 months

What cut of chicken works best?

Both chicken breasts and thighs work well though thighs stay juicier over long cook times

Can I make it spicier?

Absolutely add jalapeños or a pinch of cayenne for extra heat

See You in the Kitchen

I hope you try these slow cooker chicken fajitas and enjoy how effortless and delicious they are and they’re full of flavor and super versatile so you can make them your own every time. Let me know your favorite toppings or how you serve them!

Happy Cooking!