Tomato paste - I freeze leftover and then use it for pizzas and on pasta, with ground beef, on chicken... etc.
Spaghetti Sauce.. I make enough what ever type of pasta and may freeze the pasta itself if extra or I freeze leftover sauce and pasta together.
Rarely have beef stew for I gobble it up.
I have a bread bag of frozen heels that I will make into croutons or breadcrumbs, now that I have more meat I have uses for it. Also salads.
That about does it. Good questions.