1Heat oven to 400. Spray a 9 x 13" pan w/ cooking spray. Season chicken w/ salt and pepper. Place chicken in lg skillet over med-high heat w/ 2 tbsp butter. Saute about 10 min, or until browned. Reduce heat to low. Add broth,gravy, mushrooms and rice. Mix well. Pour ingredients into pan. Cover w/ foil and bake 30 min. Remove from oven, uncover & stir. Sprinkle w/ bread crumbs, drizzle w/ remaining butter. Bake, uncovered 10 min, or until rice is tender and top is golden.