Friendly exes! Mariah Carey and ex-hubby Nick Cannon co-parent like stars, dining out with their twins Moroccan and Monroe at Nobu Malibu. Lucky kids!

The 8-year-old twins looked sleepy as they left the restaurant with their parents -- Monroe had her iPad in hand to keep her busy as she was carried by dad.

Miss Diva was stunning in a black dress, smiling for our camera and waving. A little spicy tuna does her good!