>>1018275Not counting medications (I'm type 1 diabetic), a bit over $1600 of food/bicycle expenses in 3 months, so close to $18 a day. I could find the details for you if you want, but roughly 85% of that was food.
For hygiene, I didn't do much. I tried to wash myself with soap around once a week, and I swam when it was convenient to do so, but I was in some very dry places for long periods of time (pic related, one such campsite), so it wasn't always practical to do either. In the case of this photo, I had taken a dip when I climbed down to the Gunnison River the day before, but I was already covered with sweat and dust. Clothes got essentially the same treatment as my body.
>>1018281For breakfast I ate Cream of Wheat, Malt-o-Meal, or comparable hot cereals (I'm not a fan of oatmeal).
Between breakfast and dinner (loosely called lunch, but I normally ate 3-8 times during this interval), granola bars, peanut butter-raisin tortillas, and plenty of fresh fruit if I had visited a grocery store in the last couple days.
For dinner, any prepackaged just-add-water dinner. Pasta Sides and similar were the cheapest. I liked to add some chopped onion to give them extra flavor. Once in a while I'd pick up some extra veggies and stir fry some to go with the food.
I also did something like pancakes a few times, and bought a few sticks of cheese to change up my lunches a bit.
Between being diabetic and vegetarian (no, I don't want to convert you, or even talk about it, I just don't want my own money to support factory farming) my choices are fairly narrow. If you don't want to get 1000+ Calories a day from peanut butter, you can surely find some tasty jerky or similar.