broth
I don't think I've seen any with much protein. Do you have any unflavored protein powder? I put the powder in a bowl, add a little broth to make a paste, then heat up some broth in the microwave. If you add that slowly and stir constantly you won't get any lumps. You can get unflavored protein powder at Walmart, I think. I got mine at Vitamin Shoppe, just because I was there when I thought about it.