zucchini rice gratin

INGREDIENTS

• 1/3 cup uncooked white rice, long-grain is suggested but use whatever you prefer
• 5 tablespoons olive oil
• 1 1/2 pounds zucchini (about 3 medium), sliced 1/4-inch thick
• 1/2 pound plum tomatoes, sliced 1/4-inch thick
• Table salt and freshly ground black pepper
• 1 medium onion, halved lengthwise and thinly sliced
• 3 garlic cloves, minced
• 2 large eggs, lightly beaten
• 1 teaspoon chopped fresh thyme leaves
• 1/2 cup grated Parmesan, divided