I had been living in Brooklyn Heights for some time and Long Island Restaurant has been closed for as long as I could remember. Then one day, the sign was lit up and not long after the new owners had resurrected the spot with the promise to the previous owners the name and sign never changes. Order "A Martini" from the menu. It's divine. As are the french fries. They're double fried.
Seasonal salads, sweet and savory treats, and great coffee. It's probably my most common lunch spot when I work from home and they also offer catering if I'm too nervous to cook but want it to feel homemade.