I turned this into a gluten-free casserole by using crushed corn flakes in place of the breadcrumbs. I also don't use salt, so I omitted this item. I really enjoyed this recipe. I was looking for something different to make with zucchini and this definitely hit the spot!
From EatingWell: July/August 2013
This delicious zucchini gratin recipe has a delectable crispy Parmesan and breadcrumb topping and is made without any butter or cream, allowing the fresh zucchini flavor to shine. Slice the zucchini uniformly to ensure even cooking.
3 Reviews for Zucchini Gratin
Dish turned out a little soggy and bland in the veggies. More salt in the zukes will help. I don't know what to do about the soggy issue unfortunately.