The Zuch could make it soft. Are you shredding / salting/rinsing/drying? Or just shredding.
Depending on the zuch, they may contain alot of H2O, which would impact the outcome. What a fun recipe. Once you nail it, it sounds really flexible. Can add some red pepper, feta, or some basil, etc. I hope it works!
I know you enjoy Michelle's artichoke recipe. I love it. Make it frequently. Have you checked out the tomato/bacon tarts? I often make them together. The flavors go well. I will search, but I think it is on Mimi's....Magnolia pointed out the recipe.
Best,
Barb