This easy recipe for slow cooker chicken fajitas is perfect for a quick and easy weeknight meal. Simply add chicken breasts, bell peppers, onions, and fajita seasoning to your crockpot and let it cook on low for 6-8 hours. Serve with warm tortillas and your favorite toppings like shredded cheese, sour cream, and guacamole. This recipe is also great for meal prep, as the chicken and vegetables can be stored in the fridge or freezer for later use.