You would think after living aboard for 18 years, I would know all of the tricks to cooking aboard. I only know what worked for us, and maybe some of my ideas and tips will work for you, too.
We started out on a 40 foot sailboat with a large galley and a lot of storage. Whether you are planning for a long trip of many months or a week on the river or bay, you will need to buy provisions for the boat. We have done both kinds of trips.