Eisen's cooking skill was only a few levels away from ranking up, and the old man just finished making a huge amount of bacon-lettuce-tomato, or BLT, sandwiches, just because he had the ingredients for it on hand.
But otherwise, Eisen wasn't entirely sure what he should try to make with all of these things. He was thinking about making pasta in preparation for the giant country, so that it would be easier to actually prepare it, but the old man would need a huge amount of eggs, or a couple of actually huge eggs, in order to be able to make pasta the way he was used to.
And after a while, when Eisen stood up and basically chose to just screw it and make vegan pasta, he came up with another idea. Sure, dishes that he could prepare in large masses actually made it pretty easy to level the cooking skill up, but it also helped to make dishes with a lot of different ingredients, and Esien didn't think that vegan pasta counted toward that.