Saute onions in butter until tender. Blend ... wedges with hot mushroom cheese sauce. Saute mushrooms in butter. In top of ... mushrooms and heat through.
Toss cheeses with flour. Melt ... gently saute sliced onions in butter until golden (1/2 ... remaining butter saute mushrooms, then arrange over onions. ... the top browns nicely.
Preheat oven to 350 degrees. ... in foil. Sprinkle onion soup mix on top of roast and spoon cream of mushroom soup on top. Wrap foil ... makes its own gravy.