Try Two George's on the Intracoastal. Great view and a good salad or fish sandwich.
You might also try Hurricane Alley. They have indoor and outdoor dining and a fun atmosphere. The food is always good. http://www.myhurricanealley.com/
Two George's has a great view as does banana boat, but I wouldn’t say the food was great at either place. Both the Chicken Portobello and Chesapeake cobb salads are quite decent though at Two George’s.
Honestly having lived in Boynton for a few years I cant pick one place as being “not to miss” I did have a few standby’s as far as food goes…
Butterfly Chinese Restaurant has great thai and a HUGE variety of Chinese Japanese and thai, very reasonable. Sushi Yama Siam has good sushi ad a very reasonable AYCE. Brus Room Sport Grill has my favorite wings (get them grilled and hot) in the state and I loved the Buffalo chicken salad (also grilled) my most favorite blue cheese dressing.