1 1/2 to 2 lbs. ground beef
1/2 c. onion
2 1/2 to 3 c. uncooked macaroni
2 cans tomato soup
2 cans milk
1 pkg. Club crackers
1 can mushrooms
1 wedge (2 inches) Velveeta cheese

Brown ground beef and onions. Set aside. Cook macaroni until nearly full size. Set aside. In a large casserole dish, mix remaining ingredients. Add the ground beef, onion and macaroni; mix well. Cook in oven for 45 minutes at 350 degrees.