Begin by slicing the boneless, skinless chicken breasts into thin strips. Next, chop your bell peppers and onions into bite-sized pieces. Gather your diced tomatoes or salsa, and measure out your fajita seasonings. Having everything prepped and ready will make assembling your Crockpot Chicken Fajitas seamless and enjoyable.

In your slow cooker, layer the sliced chicken first, making sure it’s evenly distributed. Follow with the colorful bell peppers and onions, creating a vibrant base. Pour the diced tomatoes or salsa over the mixture, and sprinkle the fajita seasonings generously on top.

Cover your slow cooker with its lid and set it to cook on low for 6-8 hours or on high for 3-4 hours. The goal is to cook until the chicken is tender and fully cooked through, reaching an internal temperature of 165°F.

Once your Crockpot Chicken Fajitas are finished cooking, carefully remove the chicken from the slow cooker and shred it using two forks. Mix the shredded chicken back into the mixture, ensuring it’s well combined with the peppers and onions.

Consider offering toppings like guacamole, sour cream, or fresh salsa on the side. Serve them in traditional tortillas or experiment with lettuce wraps for a low-carb alternative.