Saw a recipe for cucumber sauce on the list today; if you don't eat milk, this is an alternative. I made it the other night for falafels (baked of course) and it was fine:
whirl in blender until smooth
grate 1 medium cucumber (no, you don't need to remove seeds) and squeeze out the excess liquid. Stir into the tofu mixture. Add a small amount of chopped fresh mint if available. Let stand for a while so the flavors blend.