Heat a large, deep skillet over medium high heat and add olive oil. Add ground beef and cook, crumbling with a wooden spoon or potato masher, until browned and mostly cooked, about 4-5 minutes.
Drain any fat and return to skillet. Stir in taco seasoning, black beans, green chiles, salt, pepper, tomato paste and picante sauce. Cook 1-2 minutes.
Transfer beef mixture to prepared baking dish and top with remaining 1 cup of cheese.
(Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.)