In a skillet, heat oil over medium-high heat. Add onion and sauté until starting to soften, about 2 minutes. Add garlic and sauté until onion is softened, about 2 minutes. Let cool for 5 minutes.
In large bowl, using your hands, combine onion mixture, beef, veal, pork, egg, breadcrumbs, cheese, parsley, salt, basil, oregano and pepper. To taste for seasoning, heat a small skillet over medium heat and fry a spoon-sized patty until no longer pink. Taste and adjust seasoning with salt and black pepper, if necessary. Roll into small meatballs about 1 1/2 inches in diameter.
Nutrition information per 4 meatballs:
Calories210Fat13 gSodium720 mg
Carbohydrates5 gSaturated fat4 gCalcium76 mg
Protein18 gCholesterol82 mgDietary fiber1 g