I use my Vargo Titanium 750 Sierra as a cooking pot, a bowl and a cup.
It boils two cups water with extra room to avoid boil over. I have sauteed in it, as well. I can fry a trout. I have even baked a giant muffin. It is my favorite all-in-one cookware for backpacking solo.
I like how it packs in an outside flat pocket.
It does it all.