1. It’s filling
2. A can or cup are negligible calories
3. It’s an entire meal
4. …with a piece of bread
5. It’s packable (in a tetra pak or can)
6. Soup can bring peace to the world

Seriously – if you’re trying to curb a raging appetite – eat some soup. If you’re still hungry – eat a banana (unless you have issues with the carbon footprint of shipping bananas from south america… if so… eat more soup).

Here’s a starter recipe (one of my faves):
http://www.epicurious.com/recipes/food/views/Potato-Soup-with-Kale-and-Chorizo-241646

More heat? This is your answer:
http://www.huyfong.com/no_frames/sriracha.htm