Classic Spaghetti and Meatballs

Name: Classic Spaghetti and Meatballs
Ingredients: 2 slices white sandwich bread, torn into small pieces; 1/4 cup whole milk; 1 pound ground beef chuck; 1/2 pound ground veal; 1/2 pound ground pork; 2 tablespoons freshly grated Parmigiano-Reggiano cheese, plus more for serving; 1 1/2 tablespoons minced garlic; Kosher salt and freshly ground pepper; 3 tablespoons chopped basil, plus 1 large basil sprig; 1 teaspoon chopped oregano; 2 (28-ounce) cans whole tomatoes; 1/4 cup extra-virgin olive oil; Pinch of crushed red pepper; 1 1/2 pounds spaghetti