1 pound ground beef
1/2 cup Italian seasoned dry bread crumbs
2 ounces mozzarella string cheese sticks, cut into 12 (1/2-inch) slices
26 ounces (1 jar) Italian style pasta sauce
8 ounces spaghetti, cooked and drained
1. In medium bowl, combine ground beef, bread crumbs and egg; shape into 12 meatballs.
2. Press 1 cheese slice into each meatball, enclosing completely.
3. In 3-quart saucepan, bring pasta sauce to a boil over medium-high heat. Gently stir in uncooked meatballs.
4. Reduce heat to low and simmer covered, stirring occasionally, 20 minutes or until meatballs are done. Serve over hot spaghetti.