Get a couple of boxes of Bisquick and some cheap protein powder. Start a campfire, mix the Bisquick and protein powder with water, put a glob on a stick like a marshmallow, and roast it in the fire. Boom- protein biscuits. You can even get fancy and drizzle some yogurt in it so it’s like honey cakes from lord of the a Rings. You can probably get 6 months of food on 1 shelf for under 100 bucks and not worry about storage temps.
Couple weeks of that and the cats and dogs are gonna start looking like more than beloved family members bro... ;-)