Gazpacho
When it's too hot to eat, but you need to eat SOMETHING, turn to gazpacho! It's moderately filling and will cool you down instantly.
Best thing? Gazpacho is super simple to make. All you need is a blender or food processor (so don't worry; you won't be standing over a stove sweating like crazy and passing out before you can enjoy your soup). Have I sold you on gazpacho yet?