Any left over veggies ie: corn, peas, beans I put in bags in the freezer til I have enough (usually in the same gallon bag) then I make a veggie stew out of them. I do not put broccilli in there that did not taste so good.
With mash potatoes I save to put on top of a hambuger pie add a little cheese and an egg or I make potatoe pancakes by adding flour, onion and an egg and frying then in butter or olive oil. My step son likes them with cheese and ham in them.
I fry hambuger meat and freeze it in little packs to pull out to add to veggie soup or casseroles when I fine it on sale.
If it does not freeze we feed it to the dogs or chickens ie the corn bread. So it does not go to waste.