Classic Homemade Lasagna My Italian Familys Secret

Ingredients

• 1 tablespoon olive oil (15 ml)
• 1 medium onion, chopped (approx. 1 cup, 150g)
• 2 cloves garlic, minced
• 1 pound ground beef (450g)
• 1/2 pound ground Italian sausage (225g), sweet or hot, casings removed
• 1 teaspoon dried oregano
• 1/2 teaspoon dried basil
• 1/4 teaspoon red pepper flakes (optional)
• 1 (28 ounce) can crushed tomatoes (800g)
• 1 (15 ounce) can tomato sauce (425g)
• 1 (6 ounce) can tomato paste (170g)
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/4 cup chopped fresh parsley (15g)
• 1/2 cup (1 stick) unsalted butter (115g)
• 1/2 cup all-purpose flour (60g)
• 4 cups whole milk (950ml)
• 1/4 teaspoon ground nutmeg
• 1/2 teaspoon salt
• 1/4 teaspoon white pepper
• 15 ounces ricotta cheese (425g), whole milk or part-skim
• 1 large egg, lightly beaten
• 1/4 cup grated Parmesan cheese (30g)
• 1/4 teaspoon salt
• 1/8 teaspoon black pepper
• 1 pound lasagna noodles (450g), oven-ready or regular (if regular, cook according to package directions)
• 3 cups shredded mozzarella cheese (300g)