- Total Time 50 min

- Yield 4 Servings
- Level Easy
This hamburger casserole featuring Italy's favorite squash is an excellent, easy to prepare, one-dish dinner.
Ingredients
- 4 zucchini, cut into 1/4 inch thick slices

- 1 cup onion, chopped

- 1 cup celery, chopped

- Olive oil

- L pound ground beef

- 1 can (6 ounces) tomato paste

- 1 cup mushrooms, sliced

- 1 tablespoon salt

- 1/2 tablespoon oregano

- 1/4 tablespoon black pepper

- 2 cups mozzarella cheese, shredded







