Use day-old cooked chicken or rotisserie chicken to save time and add extra flavor. Warm the taco shells before filling to prevent cracking. Don’t overfill shells to avoid breaking. Brush shells lightly with oil for extra crispiness. Make your own taco seasoning for fresher flavor. Serve with fresh lime wedges for a zesty finish. Variations include vegetarian filling, spicy additions, cheesy toppings, and different shell options. Store leftover filling in the refrigerator for up to 3 days and reheat before baking.