Sprinkle bread crumbs evenly into an 8-in. square baking dish coated with cooking spray. Top with 1/2 cup cheese, spinach and red pepper. In a small bowl, combine the remaining ingredients; pour over the top.
Bake, uncovered, at 350° for 35 minutes. Sprinkle with remaining cheese. Bake 2-3 minutes longer or until a knife inserted near the center comes out clean. Let stand for 15 minutes before cutting. Yield: 4 servings.