1Heat oven to 450°F. Spray 15x10x1-inch pan with cooking spray. In medium bowl, toss chicken and egg.
2In resealable food-storage plastic bag, place Bisquick mix and Italian seasoning; seal bag and shake to mix. Add chicken; seal bag and shake to coat chicken with Bisquick mixture. Place chicken in single layer in pan. Drizzle with butter.
3Bake uncovered 14 to 16 minutes, turning chicken after 6 minutes, until chicken is brown and crisp on the outside and no longer pink in center. Serve with pasta sauce for dipping.