Cheesy Enchilada-Style Meatballs

Name: Cheesy Enchilada-Style Meatballs
Cuisine: American, Mexican, Latin American
Ingredients: 1 lb lean ground beef; 1/4 cup oat flour; 1 large egg; 1/4 cup grated parmesan cheese; 3/4 cup grated cheddar cheese, divided; 2 Tbsps homemade taco seasoning; 1 tsp onion powder; 1 tsp garlic powder; 1/4 tsp sea salt, or to taste; 1/4 tsp black pepper, or to taste; 1 x 12 oz jar red enchilada sauce or 1-1/2 cup homemade enchilada sauce; fresh cilantro or basil leaves, sliced jalapeno, lime wedges, chopped avocado, or sliced cherry tomatoes