Carnival cruise food: This is a list of some free dining options on a Carnival cruise for what to eat. Some are offered only on sea days, some are also offered when the cruise ship is in port. Cruise food that kids would like too if you're on a cruise with kids! This list includes some tips on cruise food at the buffet, specialty restaurants, some DIY meals, and some healthy cruise food options for healthy meal planning ideas when you travel! Caribbean travel.