mb70, I was horrified that no one was mentioning the super amazing, always dependable, loves your tummy and soul, thermos! Sreiously, Carolin, buy two of them, and fill with chili, stews, potato, cheese, onion, ale soup, even pastas. How about carbonara in a thermos? I have put anythinb wetish and hot into my thermoses and eaten them at my outside-in-the-winter-jobs. Try to get thermoses which do not have the glass lining, or if you can't find one, make sure that the immediate lining is plastic or stainless. And how about a variety of nuts and dried fruits too. They're pretty high in calories. Soy nuts are fulla protein too. Little foil wrapped 'cheeses' are good and don't have to be refrigerated usually. Good luck.