Step 1: Slice the chicken breasts or thighs into 1/2-inch thick strips. In a large bowl, combine the sliced chicken, sliced bell peppers, and sliced onion. Add the olive oil and fajita seasoning. Toss well to ensure everything is evenly coated. For best results, let this marinate for at least 30 minutes at room temperature, or up to 4 hours in the refrigerator.
Step 2: Preheat your Blackstone griddle to medium-high heat. Once hot, add a tablespoon of cooking oil (such as avocado or canola oil) to the surface.
Step 3: Spread the marinated chicken, peppers, and onions in a single layer over the hot griddle. Cook for 5-7 minutes, stirring occasionally, until the chicken is cooked through and the vegetables are tender-crisp and slightly charred. Ensure all the chicken blackstone recipes components are cooked evenly.
Step 4: Once cooked, use your griddle spatulas to scrape and combine the mixture, ensuring all the delicious browned bits are incorporated.
Step 5: Remove the fajita mixture from the griddle and place it into a serving dish. You can keep it warm by covering it with foil.
Step 6: Warm the tortillas on the griddle for 30 seconds to 1 minute per side, until soft and pliable.
Step 7: Serve immediately with your favorite toppings like sour cream, salsa, guacamole, and fresh cilantro.