There is a nightly buffet, which we tried on Belizean Cuisine night. It is probably the best deal, with decent options, but it tended to have some quite stale desserts. That was about $12, but it was nice to eat some local rice and fish dishes.
The atmosphere there is weird-very quiet with bad canned music and a huge staff watching your every move. The breakfast buffet was about $8 and had basic eggs, meats, fruits, and good baked goods. Considering your options in Belize City, this place is probably safe to get something decent most nights. The usual menus had an abundance of pasta dishes, "their specialty," but we never really ordered these things.