We made the Brooklyn Beer Shop recipe for banana bread recently with spent grains and it was yummy.
My wife has a dehydrator, and part of cleanup on brew day is putting the spent grains in the dehydrator. They taste like grape nuts when dried. We usually use a food processor to crunch them into a course flour then use them in other recipes. Unprocessed, they are good as cereal, or mixed in with yogurt. I'll even eat a handful now and then like granola. There's still quite a bit of residual sweetness.
Maybe I should have her post some of her recipes here.
I am only doing 1 gallon batches so its a little easier to dehydrate that much.