Mexican chicken sandwich is very delightful dish which is sprinkled with the taco seasoning mix, topped with cheddar cheese and baked. It is served in a bun with sour cream, avocado and onions. Ingredients: Chicken breast halves (4 or 5), Buns, Onion (1), Cheddar cheese, Taco seasoning mix (1 packet), Avocado (1), Sour cream Method Of Preparation Take a chicken, wash it properly. Then ...