On the go foods...
These things have worked for me:
Baja Fresh - Tortilla soup and the inside of a chicken taco
Del Taco - the inside of a chicken taco / sf lemonade
Taco Bell - Pintos and Cheese
McDonalds - meat from a cheeseburger / sf lemonade
Wendy's - small chili, small potato with sour cream
I think thats all I've tried....good luck!!