Creamy White Lasagna

Cook Italian sausage in a skillet until browned; drain excess fat.

If using, chop basil or parsley and set aside.

Mince garlic and finely chop the small onion.

Sauté onion and garlic in olive oil and some butter until translucent.

Add spinach and cook until wilted; set aside.

Preheat oven while assembling lasagna.

Boil lasagna noodles according to package directions; drain and lay flat.

Make white sauce: melt butter in a saucepan, whisk in all-purpose flour and cook briefly to form a roux. Gradually whisk in whole milk until smooth and thickened. Season with salt, black pepper, and ground nutmeg.

Layer a baking dish with a thin layer of white sauce, noodles, ricotta, cooked sausage, spinach mixture, mozzarella, and parmesan. Repeat layers, finishing with sauce and remaining mozzarella and parmesan.

Bake until bubbly and cheese is melted and lightly golden. Let rest before serving.