Cherry Tomato, Bocconcini, and Zucchini Pie

Ingredients

• 4 ounces bocconcini
• 1 tablespoon sugar
• 1 teaspoon finely grated lemon zest
• 1 large egg yolk
• 1 1/2 pounds cherry tomatoes, plus cherry tomatoes on the vine for garnish
• 1 small zucchini, 7 1/2 ounces, halved lengthwise and cut crosswise into 1/2-inch-thick half moons
• 1 tablespoon heavy cream
• 3 tablespoons fresh basil, chopped
• 1/2 cup grated Parmesan cheese
• 1 finely chopped shallot, about 1/4 cup
• Coarse salt and freshly ground pepper
• 1/4 cup plus 2 tablespoons all-purpose flour, plus more for work surface
• Cheese Short Crust, made with Parmesan cheese
• 2 tablespoons extra-virgin olive oil