You can compost leftovers with a Bokashi composter, including meat scraps, I am told. It kind of pickles the scraps. Our council sells them. Or I think a special hot composter makes them safe, but these are expensive.
I put my begonias from last year in a bucket with a layer of damp compost underneath and a plastic shower cap over it, in the polytunnel and they are starting to grow leaves.
Anyone recommend design software for Apple computer?