Thanks for the post.
Here’s my advice:
Buy what’s plentiful
Buy what’s in season
Buy staple foods in bulk
Learn to cook — food is delicious already.
Eat in.
Duh-uhhh.
I’d add one more to the list: Learn to can.
Once leftovers are properly canned, they will never spoil, so you don’t have to eat them for days at a time, and they don’t take up space in the fridge or freezer.
I just made shepherd’s pie using turkey I canned up last November. Still good, still yummy!