Traditionally, when you think of soup, you think of a hot and savory dish best served to warm you up in the winter. This recipe for Cold Spaghetti Soup offers the opposite effects for a healthy and hearty way to cool off on those hot summer days. It takes an hour to prepare this dish for four. Ingredients include spaghetti noodles, sliced cucumber, sliced purple onion, sliced tomatoes, chopped coriander, tomato juice, and Italian salad dressing.