Preheat your oven to 375°F (190°C).
In a skillet, brown the ground beef or turkey over medium heat.
Drain excess fat and add taco seasoning, following package instructions.
Cut the corn tortillas into smaller rounds to fit into a muffin tin.
Spray the muffin tin with cooking spray and press the tortilla rounds into each cup.
Bake the tortilla shells in the oven for about 10 minutes, or until crispy.
Fill each tortilla cup with a tablespoon of meat.
Add black beans and corn on top of the meat.
Sprinkle shredded cheese over the top of each cup.
Return to the oven and bake for an additional 5 minutes, until the cheese is melted.