1. Flatten chicken to 1/4-in. thickness. In a small bowl, combine the butter, cheese spread, chilies, onion and salt. Spread 2 tablespoons on each chicken breast half; roll up and secure with toothpicks. Place melted butter and bread crumbs in separate shallow bowls. Dip chicken rolls in butter, then coat with crumbs.
2. Place in a greased 8-in. square microwave-safe dish. Cover and microwave on high for 10 minutes or until chicken is no longer pink. Discard toothpicks. Yield: 4 servings.