Cook broccoli according to directions; drain. Heat butter and saute onions until tender. Place broccoli spears in shallow greased casserole. Arrange turkey over broccoli. Combine onions, butter, soup and cheese. Stir in wine, pour over turkey and broccoli.
Bake in preheated 350 degree oven for 15 to 20 minutes until heated through and slightly brown on top. Serves 6.