– 1 pound ground beef – 1 small onion, white or yellow, chopped finely – 1 package (or 2 tablespoons) taco seasoning – ½ cup water – 1 can (15 oz) black beans, drained and rinsed – 1 can (19 oz) enchilada sauce – 1 bag (9.25 oz) Frito corn chip – 2 cups Mexican style shredded cheese TOPPINGS – Green onions, sliced – Sour cream – Guacamole – Salsa – Jalapeno – Black Olive – Any taco toppings you like