Preheat oven to 375°F. Spray 9x5x3-inch loaf pan with baking spray.
Combine muffin mix, eggs, sour cream, corn and green chiles in large mixing bowl; stir until well blended. Pour into prepared pan.
Bake 40 minutes until cornbread is golden brown and until wooden pick inserted near center comes out clean. Sprinkle warm cornbread with cheese. Let cool in pan 10 minutes, then transfer to wire rack. Serve warm or at room temperature.