1. Preheat the oven to 425°F. 2. On a baking sheet, toss the chicken with butter/oil, garlic, taco seasoning, salt, and pepper.3. Add the bell peppers, poblano pepper, and onions. Season with salt and pepper and toss. Arrange everything evenly on the pan. Bake for 20-25 minutes or until the chicken is cooked and the peppers are beginning to char. 4. To make the sauce, combine all ingredients in a bowl. Season with salt.5. Stuff the chicken, peppers, and onions into the warmed tortillas, and top with avocado, verde sauce, cilantro, and cheese. Enjoy!