You can swap the chicken with shredded rotisserie chicken or cooked shrimp for a different protein. For a vegetarian option, use sautéed vegetables instead of chicken. Add spice with red pepper flakes or jalapeños or include fresh spinach or cooked broccoli for added nutrition. Store leftovers in an airtight container in the refrigerator for up to 3 days; reheat in the oven at 350°F (175°C) for about 10 minutes.