Well not so much.
Let's start with the the central cooking appliance: the stove. Compared to boat stoves*, the ones in houses ashore are huge. The stove on Eolian is unusual for a boat stove in that it has three burners... many boat stoves have only two. And these are also not your household burners - they are smaller in size and heat output than you would be accustomed to from life ashore.
oven. Many boat galleys have none. That simplifies selection of baking pans - you need none. But if you are fortunate to have an oven aboard, it will not be the cavernous one you have at home. Ours on Eolian would be hard-pressed to roast a chicken. It will not accommodate a standard cookie sheet - you will have to seek a miniature one. A standard 9x13 baking dish won't fit. And aside from the size, there will probably be only one shelf in the oven.
Next, you will have a very limited amount of counter space on which to work. Eolian is pretty big, yet she has only about 4 feet of counter space, altogether. And some of that is occupied by the espresso machine and the hatch for the freezer. If you are getting the picture that complicated meals are not going to happen, that is correct.
But there is more. On a sail boat, things are rarely level while underway - the boat heels. The entire stove is gimbaled so that the cooking surface stays level while the boat is heeled... definitely not your home stove!
So yeah, it's cooking. It is simultaneously simpler and more complicated than cooking at home. And it is worth it. How many of you at home can enjoy dinner with this view? Exactly.
* I'm not talking about mega-yachts here, or large power boats with full-sized household appliances.