Brown ground beef in a skillet or microwave. Add onion and green pepper and cook until pepper is soft. Add cans of tomato soup and stir well. Simmer for at least 15 minutes. Mixture will be very thick. Boil a large pot of water. Add 3 cups of macaroni and let cook. Drain macaroni and add to meat mixture and mix well. Let sit for at least 15 minutes to let flavors mix. Great the second day.