LeAnn Rimes Dotes on Eddie Cibrian's Kids at Easter Meal
updated 04/10/2012 AT 06:00 AM EDT
•originally published 04/10/2012 AT 06:00 AM EDT
Clad in a cream sundress and heels, Rimes "was very doting on Cibrian's two sons," an onlooker tells PEOPLE, adding that that she and her hubby "were adorable with one another."
Cibrian – dressed in a blue and white gingham button-down shirt – and his family dined at the trendy eatery for nearly two hours, heading out the back door just before 1 p.m.
– Jennifer Garcia