Heat oven to 400°F. In medium bowl, mix all ingredients except salsa and green onions. Shape into thirty 1-inch balls. Place in ungreased 13x9-inch pan.
Bake uncovered about 15 minutes or until no longer pink in center and thermometer inserted in center reads 160°F.
In 2-quart saucepan, heat salsa and meatballs to boiling, stirring occasionally; reduce heat. Cover and simmer about 15 minutes or until salsa and meatballs are hot. Sprinkle with green onions. Serve hot.