Preheat oven to 325 degrees F.
Mash half of the beans in a large bowl.
Add whole beans, cumin and garlic powder; stir to combine.
Fill each taco shell with about ⅓ cup of the bean mixture.
Top with cheese.
Place the filled tacos on a baking sheet and bake until the beans are hot and the cheese is melted, 12 to 15 minutes.
