I don't think I'll go dumpster diving any time soon, but I do take significant pride in using up leftovers. In fact, the poutine example is particularly relevant to me. Just the other night I made a kind of poutine from old pasta, random bits of cheese from the drawer, and leftover KFC gravy. It was delicious. "Daddy casserole" made from whatever I can find in the fridge is not only tolerated but eagerly consumed in…
As a single person the biggest thing I like about services like Blue Apron: I can have a wide variety of fresh ingredients but without the waste of buying things like family sized bundles of herbs where I end up throwing half or more out before I can use them all.