Meatball Frittata with Mozzarella and Tomatoes

Name: Meatball Frittata with Mozzarella and Tomatoes
Ingredients: 1 tablespoon olive oil; 2 garlic cloves, sliced; 1 cup grape or cherry tomatoes, cut in half; Fine sea salt and freshly ground black pepper to taste; 8 eggs; 2 tablespoons grated Parmigiano- Reggiano; 2 tablespoons slivered basil leaves; 1/2 pound cooked meatballs, cut in half if more than 1 inch in diameter; 4 ounces mozzarella, preferably fresh, cut into 1/2-inch chunks; Green salad, to serve