Gazpacho is a tomato-based cold soup originating from Spain. It's very refreshing during the summer. Some recipes also include bread and vinegar and fancy garnishes, but mine is pretty basic:
One large cucumber, peeled
Enough red, orange, and/or yellow bell peppers to match the size of the cucumber
1-2 cloves garlic
1/2 small sweet onion (red, Vidalia, etc.)
3 cups tomato juice - "V8 with essential oxidants" for the extra vitamins
2 tablespoons olive oil
Put everything through a blender. Mix together. Chill in fridge overnight. Eat.