Preheat oven to 450 degrees. Spray two baking sheets with non stick cooking spray.
In a large saute pan, brown ground beef.
Season with salt, pepper, garlic powder, onion powder, cumin, paprika and chili powder.
Add beef broth and sprinkle in cornstarch.
Let simmer until slightly thickened.
Stir in black beans.
Arrange mini bell peppers halves on sheet pans and spoon filling into bell peppers.
Top with shredded cheese.
Bake for about 10 minutes, rotating sheets pans halfway through.
Top with favorite nacho toppings, including sliced olives, green onions, fresh tomatoes, sliced jalapeño, guacamole and/or sour cream