I usually buy the gardein nuggets as they have a really good texture for it. You can use the big TVP chunks. If you do, you should hydrate it in stock with a splash of vinegar, press the moisture out, sautee in lots of fat until a good sear develops, and then coat in breadcrumbs or corn-starch and fry.

I'll do tofu as well. You have to buy good tofu though, not that mealy garbage in the plastic container full of water.

Fried cauliflower is delicious, but devoid of protein, so I never use it here as I don't want to be hungry in an hour.