Preheat your oven to 180°C (350°F) and gather all your tools and ingredients for a smooth assembly.
Cook the lasagna noodles in boiling salted water until just al dente, about 8 minutes. Drain and set aside to cool slightly.
Heat olive oil in a skillet over medium heat, add minced garlic, and sauté until fragrant and translucent, about 1 minute.
Add ground beef to the skillet, breaking it apart with your spoon, and cook until browned and cooked through, about 10 minutes. Season with salt and pepper if desired.
Stir in chopped sage and a pinch of nutmeg into the beef mixture, letting the aromas meld for a minute.
Pour in the tomato sauce with a splash of red wine, stir well, and simmer for 10 minutes until thickened and flavorful.
Spread a thin layer of sauce at the bottom of your baking dish, then layer with noodles, followed by a spread of ricotta, the beef mixture, and a sprinkle of shredded mozzarella. Repeat these layers until all ingredients are used, finishing with a layer of sauce and cheese on top.
Cover the assembled lasagna with foil and bake for 25 minutes until bubbling and heated through.
Remove the foil and bake for another 10 minutes until the cheese is melted, bubbly, and slightly golden.
Let the lasagna rest for 10 minutes to set before slicing. Garnish with chopped basil or parsley for a fresh, herbaceous finish.
Slice into squares, serve, and enjoy the comforting, festive flavors with friends or family.