Indirectly, I suppose, since he is the Chief Culinary Officer (whatever that is). But no venue of his own.
Found it
As Chief Culinary Officer, Lagasse will support Carnival's skilled chefs with guidance on food trends and techniques as well as advise on future menu items and dining concepts. Guests will also see his input on the menus of main dining rooms fleetwide, including entrées designated as "Emeril recommends" picks.