mexican recipe with ground beef

Ingredients 1 lb ground beef 1 onion, finely chopped 2 cloves garlic, minced 1 packet taco seasoning mix 1 can (10 oz) enchilada sauce 1 can (15 oz) black beans, drained and rinsed 1 cup corn kernels (fresh, canned, or frozen) 2 cups shredded cheese (cheddar or Mexican blend) 8-10 small flour tortillas Optional toppings: sliced black olives, chopped green onions, chopped fresh cilantro, sour cream