We are doing mostly mail drops on our thru for the amount of variety it offers. If you have access to a dehydrator the possibilities are endless. If you don't have a dehydrator, there are great hiking recipes out there that can be very easy to make/prepare to package to send. www.trailcooking.com has great recipes that you can have ready to throw on a camp stove (once prepped at home-and by prep it can mean throwing ingredients into a ziploc) This can provide a lot of nutrition and variety. Buying in bulk may cover the cost of shopping.