I discovered peanut butter which is nothing but ground peanuts. I get it at Vitamin Cottage which is a natural food store in Colorado and some surrounding states. It comes in a 1 lb lightweight plastic container. I use tortillas for a lot of things. They keep well and don't crush.
This is a good substitute for a couple granola bars and a lot tastier. Most of my recipes are 300 calories and work out to 1.5 pounds a day for 3,000 calories.
The recipe is my own. I think it tastes great.