Turkey Tetrazzini

1/2 cup sliced, canned mushrooms, drained
1/2 cup thinly sliced onions
1/4 cup margarine
1/4 cup flour
2 cups chicken broth or bouillon
1 cup light cream
1 teaspoon salt
1/4 teaspoon pepper
1/2 teaspoon poultry seasoning
8 ounces spaghetti, cooked and drained
3 cups diced, cooked turkey
1/2 cup shredded, aged cheese

Lightly brown the mushrooms and onions in margarine. Stir in flour. Cook until bubbly. Stir in the broth and cream. Add salt, pepper and poultry seasoning. Cook, stirring often, until mixture boils.

Place a layer of cooked spaghetti in a buttered 2-quart casserole. Cover with a layer of diced turkey and a layer of sauce. Repeat. Finish with a layer of spaghetti. Sprinkle cheese on top. Bake at 400 degrees F for 20 minutes or until bubbly. This can be made ahead and refrigerated until baking time.