04/19/2012 at 08:00 AM EDT
stepped out for brunch with a big group of friends at Cafeteria in New York's Chelsea neighborhood. The singer, and mom of two
, dug into an omelet with spinach, caramelized onions and goat cheese – and she sipped mimosas during her leisurely afternoon meal.
"They pulled up in a black Bentley and made quite a stir," a source tells PEOPLE.
And the food must have been good – because the next day, Carey
stopped into the 24-hour diner again for round two – this time at 6 a.m. wearing leggings, heels and a T-shirt with a screen-printed image of Marilyn Monroe. For breakfast this go-around? A bagel with lox, a catfish fry and orange juice. – Kristen Mascia