Zucchini Tart With Cream Cheese, Mozzarella, and Thyme

Name: Zucchini Tart With Cream Cheese, Mozzarella, and Thyme
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: American
Ingredients: 1 1/4 pounds zucchini (570g; about 2 medium zucchini), cut into 1/8-inch-thick rounds; 1 1/4 teaspoons Diamond Crystal kosher salt, plus more to taste as needed; for table salt, use half as much by volume; All-purpose flour, for dusting; 2 sheets frozen puff pastry from one 14-ounce box, thawed until pliable but cool; 4 ounces (113g) full-fat cream cheese, softened; 1 tablespoon (15g) Dijon mustard; 1 1/2 teaspoons chopped fresh thyme leaves, plus additional leaves for garnish; 1 medium garlic clove (5g), minced (optional); 4 ounces shredded low-moisture mozzarella (113g; about 1 cup); 1 tablespoon (15ml) extra-virgin olive oil; Freshly ground black pepper; Finely grated zest of 1 lemon