1. Slice your chicken breast, peppers and onion into thin strips. 2. Add a splash of oil to a hot pan and stir-fry the chicken until thoroughly cooked. 3. Throw in the onion, peppers and Old El Paso Original Smoky BBQ Fajita Spice Mix. 4. Sizzle away, stirring or tossing until the chicken is browned keeping the veg crunchy. 5. To warm the Old El Paso Soft Flour Tortillas pierce the packaging and microwave on full power for 35-40 seconds (cooking time may vary depending on microwave). To heat in the oven, remove packaging, separate tortillas and wrap in foil. 10 minutes at 200°C (180°C for fan assisted ovens), gas mark 4 should do it. Keep them covered and warm until ready to serve.