This easy and flavorful recipe for crockpot chicken fajitas is perfect for a busy weeknight. Start by processing onions, garlic, and peppers in a food processor until finely chopped. Then, add the mixture to a crockpot along with chicken breasts, fajita seasoning, and lime juice. Cook on low for 6-8 hours, or until the chicken is cooked through and the vegetables are tender. Serve hot with tortillas and your favorite toppings.