Beef Casserole - cooking recipe

Ingredients

Diced leftover roast
1/2 green pepper, chopped (optional)
1/2 c. onion, chopped
2 Tbsp oil, or less
1 can sliced mushrooms (or fresh)
1 1/2 c. brown gravy, made from roast drippings
2 oz. noodles, cooked
Parmesan cheese

Preparation

Saute onion, pepper, beef and mushrooms.
Add gravy and pour over the cooked noodles.
Sprinkle with Parmesan cheese and bake in moderate oven 30-45 minutes.