Wash and/or peel all veggies. For something like corn kernels in a can, I like to dump the water and then pat dry with paper towel. This just helps with speeding up dehydration.
1 bag Baby carrots, 1 can whole kernal corn, 1 lb box Baby Bella Mushrooms, 2 bunches Green Onions
Take veggies and slice thin either with a mandolin or with a knife. The thinner the better because it'll speed up dehydration.
Take veggies and evenly space across dehydrator trays, ensuring none overlap.
Set dehydrator to ~145F.
Dehydrate veggies overnight. In the morning, take a few out and allow to cool. They should feel brittle to the touch and snap. If they still feel pliable, they need to keep dehydrating.
Store in ziploc baggies and use whenever you want Ramen.