Vegetarian Kishkes

I've never heard of a Kishke before until I tried them while in NY - had breakfast one morning on the upper west side at Brooklyn Diner and they had them. Amazing!!! They were so yummy, hubby loved them too so made a mental note that I had to try making them at home.

Finally found matzo meal - and could only find em at citysuper. Took awhile tho cuz it was out of stock for a while...

Now they smelt really yummy when they were in the oven, but was a little bland and dry. How do you stop things from going dry when you bake em? I've had this problem with my falafels too...
Any advice???