All meals and snacks are included in the cruise fare if you eat in the standard (free) restaurants. There are lots of no cost choices.
There are also specialty restaurants that are extra cost. Room service is also free but it is customary to tip the delivery person a buck or two.
All of this will be spelled out for you in the Freestyle Daily Newspaper you will receive each day.
54 Carnival: Mardi Gras, Ecstasy X2, Fascination X6, Celebration, Elation X5, Glory X5, Fantasy X4, Valor, Holiday X3, Imagination, Liberty, Spirit X2, Freedom, Destiny X2, Splendor X2, Dream X2, Conquest, Legend X3, Victory, Sensation, Paradise, Inspiration, Magic X2, Triumph, Miracle, Breeze, Sunshine X2
6 Norwegian: Sky, Jewel, Dawn, Epic, Pearl, Breakaway
7 Windjammer: S/V Legacy X3, S/V Polynesia, S/V Caledonia, S/V Diamant, S/V Sagitta