Lasagna Rolls - With meat

2 tablespoons unsalted butter 4 teaspoons all-purpose flour 1 1/4 cups whole milk 1/4 teaspoon salt 1/8 teaspoon ground black pepper 1 pinch ground nutmeg 1[...]

8 cooked lasagna noodles 1/2 lb ground beef 1 small onion , chopped 2 garlic cloves , crushed 1 tablespoon italian seasoning 500 ml spaghetti or 500 ml pasta[...]

6 lasagna noodles, cooked 8 ounces part-skim mozzarella cheese , shredded 8 ounces skim milk ricotta cheese 1/4 cup grated parmesan cheese 1 egg 1 pinch salt[...]