Can get some Brasilian food on North Ave in BPT. Place is called Terra Brasilis. I LOAD up my plate, and since they charge by weight, it usually doesn't go over $10. And that is for a LOT of food. Standard buffet with various meat skewers.
You could also check out Two Boots in downtown. They have pizza and other "cajun" inspired food. Prices are decent as well.
Omanel on Main in Bridgeport is very reasonable Portuguese food. Sit-down, nice atmosphere. Can't really go wrong there.
I'm trying to think of others...will let you know should anything strike me.
Terra Brasilis Restaurant
1282 North Ave, Bridgeport, CT 06604
1909 Main St, Bridgeport, CT 06604