This gratin is the perfect way to use up an abundance of zucchini squash. It's easy to prepare, takes just 10 minutes in the oven and serves up bubbly and delicious.
1 yellow onion, sliced |
1/4 cup butter |
2 lbs zucchini, sliced |
1/2 cup butter, melted and divided |
2 cups shredded mozzarella cheese |
1/2 cup bread crumbs |
1/4 cup grated Parmesan cheese |
Submitted by Pam Jordan