Classic Lasagna with Secret Tips

For the Cheese Mixture:

2 cups ricotta cheese
1 egg
1/2 cup grated Parmesan cheese
2 tbsp fresh parsley or 1 tsp dried parsley
Salt and pepper, to taste
For the Layers:

12 lasagna noodles (regular or oven-ready)
3 cups shredded mozzarella cheese
Extra grated Parmesan for topping
Secret Tips:

Instructions:
Instructions:
Prepare the meat sauce:
Heat the olive oil in a large skillet over medium heat. Add the ground beef, sausage (if using), and chopped onion. Cook until the meat is browned and the onions are soft, about 7-8 minutes. Drain any excess fat.
Stir in the minced garlic and cook for another 1-2 minutes.
Add the crushed tomatoes, tomato paste, tomato sauce, red wine (if using), dried basil, oregano, sugar, bay leaf, and salt and pepper. Stir well to combine and bring the sauce to a simmer.
Let the sauce simmer uncovered for 30 minutes to an hour, stirring occasionally. As the sauce simmers, add the 1/2 cup of water and 1/4 cup of heavy cream toward the end for extra moisture and richness.