PREPARATION:
- Combine salsa, tomato sauce and chili powder in medium bowl; set aside.
- Combine beef, egg, bread crumbs, onion, salt and pepper in large bowl; mix well. Form into 16 (about 1-1/2-inch) meatballs.
- Cook meatballs in large skillet over medium-high heat 6 to 8 minutes or until brown. Add salsa mixture; bring to a boil. Cover; reduce heat to low. Cook, stirring occasionally, 20 to 25 minutes. Place 4 meatballs in each roll; top with salsa mixture.
