I am not a veteran, just two months banded, but I can relate to how difficult this period of post-op is, having been through not too long ago.
Are you allowed to have creamy soups yet? If so, try cream of potato mixed with 1/2 can of cream of cheddar. Eat as much as you want. It's very filling.
I know that the OCC has a "straw" rule, where you can anything that can go through a straw. To be honest my creamy soups probably would not have gone through a straw, a little thick for that, I think, but I did just fine and it kept me full for quite a while.
Pudding is good too, a thicker choice of food will stick longer.
Good luck! You can do this, it's not forever!!