Best Lasagna with Ricotta Bechamel

Ingredients (23)

• + 1 pound ground sirloin add to pantry
• + ½ pound ground Italian sausage add to pantry
• + 2 teaspoons olive oil add to pantry
• + 1 medium yellow onion, finely chopped add to pantry
• ✓ 1 ½ teaspoons kosher salt
• + 3 cloves garlic, finely chopped add to pantry
• + 4 cups canned crushed tomatoes add to pantry
• + ¼ cup dry red wine add to pantry
• + 3 tablespoons tomato paste add to pantry
• + 1 teaspoon white sugar add to pantry
• ✓ ½ teaspoon ground black pepper
• + ¼ teaspoon crushed red pepper add to pantry
• + ¼ cup chopped fresh basil, plus more for garnish add to pantry
• + 2 tablespoons chopped fresh flat-leaf parsley add to pantry
• + 3 tablespoons unsalted butter add to pantry
• + 3 tablespoons all-purpose flour add to pantry
• + 1 ⅔ cups whole milk add to pantry
• + ⅛ teaspoon freshly grated nutmeg add to pantry
• + 1 cup whole milk ricotta cheese add to pantry
• + cooking spray add to pantry
• + 1 (16 ounce) package lasagna noodles add to pantry
• + 4 cups shredded mozzarella cheese add to pantry
• ✓ ¾ cup grated Parmesan cheese