Augason farms has a product that makes almost ideal road food. They call it "Southwest Chili Mix." It's available in their "everyday" cans, which makes a half-gallon of bean chili, or a #10 can, which makes 34 servings for about $.50 (fifty US cents) per serving.
The mix contains beef stock and chicken fat, which is unfortunate for you grazers and vegans. With proper petitioning, Augason may be willing to make a fully veggie version of this. It would not be difficult to substitute vegetable stock for the beef, and there would be little loss of flavor.
The serving size is substantial. I could only find instructions for two servings, so that's what I made. Combine 2/3 cups of chili mix to 2 2/3 cups of water. Blend together and simmer for about 20 minutes. The resulting mix is a somewhat loose chili. It is not hot, but has a nicely balanced savory flavor. For them as likes to suffer, you can add hots later. It would be great over quick cooking brown rice as a fast beans and rice, or as a full-on experience with meats and cheese.
This one's tasty enough that it's going into the pantry as an everyday staple. I can't see any down side to it, except that it has a rather high sodium content.