There is a sit down restaurant or a slice shop if people don't wanna wait. Kinda fun to sit down though, as it is in an old converted warehouse.
Great bagel and sandwich deli to checkout.
Very local Brooklyn vibe bar.
Great for football games and late-night outing.
great spot to take food and drinks to enjoy the view or simply stop by for a quick selfie.
If you are looking to explore a little in different areas, consider taking a ferry from South and North Williamsburg to Dumbo, or Wall Street, etc.
Linked to google maps to take you to Bedford Train Station, which goes into Union Square.