This recipe makes a large pot so ingredients will have to be adjusted according to your pot size. In a large stockpot, add potatoes and onions. Fill with enough water to cover potatoes and onions. Add salt to the water. Cook potatoes and onions over medium heat until almost tender.
Add cubed spam and cook until potatoes are tender.
Add cans of tomato soup and milk. Add more salt to taste and add pepper. Turn dial up to high.
Add slices of cheese and stir until melted. Keep stirring until soup has come to a boil. Once soup has come to a boil, remove from heat. Soup is ready to eat!