Use a different protein: Instead of ground beef, you could also use ground chicken or shredded rotisserie chicken, ground turkey, ground pork, or some tofu crumbles for a vegetarian option.
Add toppings: Top with parsley, sour cream, more pickles, refried beans, green onions, jalapeno slices, black olives, diced tomato or pico de gallo, shredded lettuce, black beans, fresh cilantro, or this homemade authentic guacamole recipe.