That is the one thing I dislike about the Boardwalk, honestly. There are few options, none that I particularly like, at the Boardwalk Bakery.
You could walk over to the Beach Club and see what they offer. The other option is to go to Epcot.
After many stays there, then staying at Pop Century (and recently All Star Sports), I know have to admit I find the dining options better at the value resorts for what we like (we often go back to the room in the evening and just want something simple to have for dinner, and last stay at All Star the pizza delivery actually had more options like pasta and salads & desserts than I could get at the Boardwalk Bakery - very reasonable and delivered to the room quickly). Okay, maybe the desserts at the bakery no one can compare to, but for sandwiches and hot dishes, they don't offer much.