Zucchini Quiche

Ingredients

• 2 cups zucchini, sliced thin
• 1 cup onion, sliced
• 3 tablespoons olive oil
• 1 garlic clove, crushed
• 1 1/2 teaspoons salt
• 4 beaten eggs, beaten
• 1 cup milk
• 1 cup heavy cream
• 1/2 cup mozzarella cheese, shredded
• 1 (10 inch) pie crusts