Turkey Tetrazzini is the classic creamy and cheesy pasta dish with mushrooms and leftover holiday turkey, but chicken works too for enjoying all year long.
Sauté for about 3 minutes or until the vegetables have begun to soften;
Add the flour and stir well, making sure all the flour has been thoroughly mixed into butter and vegetables.
Pour into a large baking or casserole dish, cover, and bake in a 375°F degree oven for 30 minutes.
At time, remove cover and bake an additional 5 minutes allowing the top to brown.