1 c. elbow macaroni, cooked
3 slices bacon, chopped or bacon bits (2 tbsp.)
1/4 c. onion, chopped or minced onion (1 tbsp.)
1 lb. hamburger, browned
1 (2 oz.) can mushrooms (optional)
1 (10 oz.) can tomato soup
1/2 c. water
1/2 tsp. oregano
1/2 tsp. salt
1/8 tsp. pepper
1 c. grated cheese

Combine all ingredients in 2 quart casserole and bake at 375 degrees for 20 minutes.

Microwave: Combine all ingredients and cook on high for 4 minutes. Stir and cook on high for 4 minutes.