Do they serve any chicken or vegetarian items?

Yes, many chicken options as well as veggie burgers

I have admit I go there for seafood. I have never looked for anything else on the menu.

I don't think so

I don't recall any chicken on the menu and don't think they have a vegetarian menu

From my visit last week, I don't remember any chicken items. They do have salads. Here is link to menu: http://atlanticseafoodcompany.com/menu/