Taco seasoning: You can use store-bought taco seasoning or 2-3 tablespoons of homemade taco seasoning. Rotel substitute: If you can't find diced tomatoes and green chilies you can make my homemade Rotel substitute, or use ½ of a 15-ounce can of petite diced tomatoes + ½ of a 4-ounce can of green chilies. Serving: Serve this Queso Chicken Taco filling however your family prefers their tacos! You could go the traditional route and serve it with flour or corn tortillas, or you can serve up ...