Are you just-covering the veggies in boiling water? After they rehydrate, put them in a colander, give a good jiggle around to get the extra water out. Some blot with a tea towel or paper towels, too. Then try sautéing in a plunk of butter and garlic and/or onions. Dehydrated shredded potatoes need to drain a bit longer before frying up. This has been my experience for the last 3 years with eating my home-dehydrated stuff. ;)
Debbi
They turn out fluffy and yummy.
For soup I generally just soak them in hot water for a hour or so. Except for corn and peas. Those get around a six hour soak.