1.

Preheat oven to 350 degrees

2.

Combine beef, egg, oregano, salt, and pepper in a bowl; mix by hand until thoroughly combined.

3.

Form mixture into 1½-inch meatballs (a heaping tablespoon) and place in 9-by-13-inch baking dish or baking sheet with a lip.

4.

Bake in 350-degree oven for 15 minutes, until cooked through.

5.

Toss meatballs with remaining ingredients of the salad, sprinkling the vinegar on top.