1Heat oven to 400ºF. Spray 8x4-inch loaf pan with cooking spray. In small bowl, stir together Bisquick® mix, water and egg product; spread in pan. Sprinkle with 1/4 cup of the cheese.
2In 10-inch nonstick skillet, cook chicken over medium-high heat, stirring frequently, until outsides turn white; drain. Stir in salsa; heat until hot. Spoon over batter in pan to within 1/2 inch of edges.
3Bake about 20 minutes. Sprinkle with remaining 2 tablespoons cheese. Bake about 2 minutes longer or until cheese is melted; loosen from sides of pan.