After much research, we finally were successful in our search for info regarding the regulations for bringing in USDA meat into Belize.
According to the Belize Agricultural Health Authority, one does need an import permit to bring meat into Belize...even for personal consumption. However, the office was very helpful and we actually have a permit in our hot little hands right now!
In order to obtain our permit, we just called the above office (phone 011-501-24-5230) and asked about a permit. They told us all we had to do is fax them (same phone number) a list of exactly what we would be bringing in (all meat has to be USDA inspected).
We did this and voila...two days later they faxed us a permit!
We are to present this permit to the quarantine officer at the Belize City airport along with our USDA meat, pay a $10BZ fee for the permit...and presto jingo, we are ready to BBQ on the beach!
Hope this helps anyone else interested in bringing meat in.