Preheat oven to 400°F

Break spaghetti into 2 to 3 inch pieces and cook according to package

Meanwhile, combine mushrooms, cream, tuna (or other white meat).

Drain spaghetti and combine with mushroom -meat mixture.

Put in greased 2 to 2 1/2 quart casserole dish.

Mix bread crumbs, cheese and melted butter and sprinkle on top of casserole.

Bake at 400°F for 45 mins to an hour or until brown and bubbly.