A stick blender which is easier for blending/pureeing small serves.
I used a lot of small snack size zip lock bags to freeze individual portions & leftovers - work for liquids & solid foods. They take up less room in the freezer than plastic storage containers too.
Child size forks or buffet forks, small plates & bowls (like little tapas ones).
A tea leaf strainer. I know it sounds odd but I found it useful for straining Soups into mugs to make sure there were no lumps, chunks or stray pieces of meat, vegetables or herbs. A small whisk. A jug with increments in ounces. Kitchen scales also with small increments. A set of measuring cups & spoons.
A small thermos & a thermal cup.
Good luck with your surgery.