Ingredients

1 lb lean (at least 80%) ground beef
1/2 cup Italian-style bread crumbs
1/4 cup milk
1/2 teaspoon salt
1/2 teaspoon Worcestershire sauce
1/4 teaspoon pepper
1 small onion, finely chopped (1/4 cup)
1 egg

Steps

1. Heat oven to 400°F. Line 13×9-inch pan with foil; spray with cooking spray.
2. In large bowl, mix all ingredients. Shape mixture into 24 (1 1/2-inch) meatballs. Place 1 inch apart in pan.
3. Bake uncovered 18 to 22 minutes or until temperature reaches 165°F and no longer pink in center.