Well, once you have 8 Sea Loafs it says you have too much items if a Recipe fails. Seeing it wants to add another Sea Loaf, but it's full. So go fish hunting or something and get 8 loafs, then keep on trying to get the good recipes.
And if I misunderstood and you just want a lot of items, make loads of Seacakes and Tasty Cakes, the one's with the eye on top and then the Tough Cake, those three save my life more then once.