In my fantasy world I am going for a Mesozoic-inspired biome, so I want there to be no grasses. This means no wheat, rice, corn, and the like. I imagine that the staple crops will be tubers, legumes, cabbages, roots, onions, and mushrooms.
This made me think: Most of the long-term storable vegetarian foods I know about are grass-based (grains, biscuits).
Which non-grain vegetarian foods would be best for long-term storage?
My stories are set across centuries, and the available technology ranges from late medieval to early modern period, perhaps 1500 through 1900.