Beef & Mushroom Country Casserole is a filling and flavorful hot meal that the whole family will love, and with NO cream of soups!
Cook the noodles according to the package directions, but until slightly less done. The noodles will further cook while the casserole bakes. Once cooked, drain the noodles and set it aside.
While the noodles are cooking, finely dice the onion and slice the mushrooms.