I've cooked with TVP at home - added to chili; spaghetti, etc. with or without hamburger. Pretty unnoticeable. I've also made TVP sloppy joes that the kids raved about. Bonus is how fast the sloppy joes are to make.
I've taken a version of the sloppy joes backpacking. It worked out well - tasty and quick.
As previously noted, some people do have digestion issues with TVP. It's good to start with a small amount to see.
-FA