Mozzarella-Ricotta Flatbread

Name: Mozzarella-Ricotta Flatbread
Cuisine: European, Italian, Mediterranean
Ingredients: 2 tablespoons extra virgin olive oil; 1 small yellow onion, diced; 2 cloves garlic, minced; 3 tablespoons plain Greek yogurt plus 1/2 cup plain Greek yogurt; 1/2 teaspoon dried thyme; 1 teaspoon salt; 1/2 cup ricotta; 1 package pizza dough (room temperature); 6 ounces mozzarella, sliced; 12 cherry tomatoes, halved; 2 tablespoon torn fresh basil