Place carrots in a saucepan and cover with water. Bring to a boil; reduce heat, cover and cook until tender. Meanwhile in a small skillet, sauté onion in butter until tender. Drain carrots; add onion, soup, mushrooms and Parmesan cheese. Transfer to a greased 2 1/2 quart casserole dish. Sprinkle with bread crumbs. Bake uncovered at 350° F for 30 to 35 minutes or until heated through.
Servings: