Greek Lasagne Pastitsio

Name: Greek Lasagne (Pastitsio)
Ingredients: 1⁄3 cup extra-virgin olive oil; 2 green bell peppers, cored, seeded, and minced; 2 medium yellow onions, minced; 1 lb. ground beef, veal, or pork; 3 oz. dry-cured chorizo, minced; 2 cups canned crushed tomatoes; 1⁄3 cup red wine; 1⁄4 tsp. crushed red chile flakes; 2 fresh or dried bay leaves; 1 stick (about 2″) cinnamon; Kosher salt and freshly ground black pepper, to taste; Freshly grated nutmeg, to taste