I think I would just drive to the little supermarket 15 mins away and buy a cooked chicken every day (they're like 6 bucks), I'd also buy some bread and a dozen eggs. I'd then save the spare 5 dollars a day and after 5 days buy a 1kg bag of protein powder.

At which point I'd be on a protein shake for breakfast, a whole chicken and an egg sandwich or something. In Europe and the UK, you don't have to refrigerate your eggs (apparently, in the US, eggs are washed and sanitized, which removes the coating, so they must be refrigerated to prevent bacterial growth, like salmonella. In the EU they are not washed and still have a protective coating.

After a while, I'd probably have more of a surplus because i wouldn't need to buy 12 eggs every day, and I might not always eat the whole chicken. I could mix it up with some other stuff