There is a great air conditioned restaurant behind the bus station in Belmopan..The name Calderea (sp?) very reasonable and good.I bumped into X prime minister Musa there, opened the door to leave and ran right into him, he almost fell over!!!!!
Or you could eat at the market. The food is great and very inexpensive. Try to get there before or a bit after the lunch hour, since a lot of government workers eat there and you might have a hard time getting a table/seat.
If you want inexpensive, the street vendors in Belmopan would be better, none of the three are "cheap". I have never gotten to know trhe owners of Cheers, but we did adopt their cat. They were out of the country though at the time.
The average price for a big meal with beverage at caldera is about $5.00 U.S, however I usually have stew chicken, stew beans and rice, veggie salad with lime juice to drink, $4.25 U.S. guess I like to splurge....