Tex-Mex tacos feature ground beef, a flour tortilla, salad, and yellow cheese. A Mexican taco is always served in a corn tortilla, filled with slow-roasted pork or barbecued meat, and topped with lime, onion, and cilantro.

Lime is probably the most essential of authentic Mexican taco toppings. A squeeze of lime adds a dash of acid that brings out the other flavors in a taco beautifully. Onions, cilantro, pico de gallo, sliced radishes or cucumbers, avocado, and chili peppers are also standard toppings for authentic tacos.

Pollo. Pollo, or chicken, is another staple taco meat. The trick to having killer pollo tacos, though, is to mix up the style. Chipotle chicken is a popular substitution, for example, and it can completely change what you thought you knew about pollo tacos.