I'd avoid rice or risotto or anything that's small like that. I had issues with things getting stuck in the new void when I had my tooth pulled and I don't wish that on anyone.

I went with lots of those "soup at hand" containers. Mashed potatoes are good along with puddings and jellos. Lots of good suggestions above, too. Just keep textures in mind with the fact that you have a new hole for things to settle into - small lumpy things aren't so good.