>>2529759I have the same issue. I'm based in Europe, but you should be able to get everything in a flyover land convenience store as well.
What you need is fibre. Oatmeal is pretty rich in fibre, lightweight, cheap and easy to prepare. I eat it once a day. Dried fruit like apples, figs or plums are also great. Don't get the half dried stuff because it tends to go bad. If you buy pasta, get whole wheat pasta (smaller size cooks faster, so less fuel). Granola bars work too but often they have too much sugar for me. And whenever you are in town, got some fresh vegetables, fruit, canned lentils, beans or chickpeas.
Minimize processed carbs like white bread, cookies, ramen, ect..
Happy shitting, anon.