Caprese Stuffed Peppers

Name: Caprese Stuffed Peppers
Ingredients: 1/4 cup plus 3 tablespoons olive oil, divided; 4 medium red bell peppers; 2 cloves garlic; 1/2 teaspoon kosher salt, plus more for seasoning; 1/4 teaspoon freshly ground black pepper, plus more for seasoning; 2 pints cherry or grape tomatoes, preferably multi-colored (about 4 cups total); 1 cup packed fresh basil leaves; 1 1/2 tablespoons red wine vinegar; 2 tablespoons pine nuts (optional); 1 (8-ounce) ball burrata or fresh mozzarella cheese; Flaky salt, for serving (optional)