heat oven to 400°F

combine beef, onion, cheese, garlic, egg,1 tablespoon oil, oregano, vinegar, salt, and pepper in a large mixing bowl.

knead to combine being careful not to over mix

lightly oil a 9×13 baking dish. shape meat mixture into 40 (1 tablespoon) meatballs.

place ina single layer in the baking dish and bake until cooked through.12 to15 minutes. serve hot...