Popping into the city's Prospect eatery, the pop star – clad in flowy pants and a head wrap – and her man, with a friend, sat in a booth in the middle of the restaurant, and were "really friendly and low-key," a source tells PEOPLE.
It was quite the feast for the health-conscious couple, with Pink munching on tortellini with fava beans, summer truffles, dinosaur kale and red pearl onions – and Hart, who said he was "in training," nibbling on a gluten and dairy-free selections of dishes.
Topping the meal off with some sweet treats, Pink had a kaffir lime gimlet on the rocks, while Hart sipped on an espresso martini. Both indulged in various ice cream flavors as well.
– Kristen Mascia