I bought a case of commercial MRE's from Amazon.I think they were about $75 and had a pack date on them.Trouble with MRE's is they have too much garbage left after the meal.

https://www.amazon.com/gp/product/B075CP1ZZ4/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

If God wanted you to walk and carry things on your back, He would not have invented stirrups and pack saddles