Lasagna With Meat Sauce Recipe
Ingredients 3 tablespoons extra-virgin olive oil 3/4 pound 85-percent lean ground beef 3/4 pound sweet Italian sausage, removed from casing 1 medium onion, chopped (1 1/2 cups) 2 carrots, peeled and chopped (3/4 cup) 2 celery stalks, chopped (3/4 cup) Kosher salt 6 garlic cloves, minced (2 tablespoons) 2 teaspoons dried oregano 1/2 teaspoon red-pepper flakes 3 tablespoons tomato paste 2 cans (28 ounces each) whole peeled tomatoes in juice 24 ounces whole-milk ricotta (3 cups) 1 cup whole milk 3 large eggs 4 ounces Parmigiano-Reggiano, finely grated (1 1/4 cups) 1 pound low-moisture mozzarella, shredded (4 cups) 3/4 cup chopped flat-leaf parsley Kosher salt and freshly ground pepper 18 dry lasagna noodles Preparation Preheat oven to 375 degrees....