For me, almost any food.
Nothing known yet that I can't eat after one year.
I drink "shiploads" more water.
My meals these days fit in a bowl or a side plate.
If I eat out, I make sure I take a couple of ziplock bags or a tight-lidded "chinese" container. I inevitably cannot eat a main meal in one go any more.
I usually order an entree only if the choices are suitable.