Creating Creamy Spaghetti and Meatballs can be straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 400°F (200°C) for baking the meatballs.
2. Mix Meatball Ingredients: In a large bowl, combine ground beef, ground pork, breadcrumbs, Parmesan cheese, parsley, garlic, egg, salt, black pepper, and Italian seasoning. Mix until well combined.
3. Form Meatballs: Shape the mixture into meatballs, about 1 to 1.5 inches in diameter, and place them on a baking sheet lined with parchment paper.
4. Bake Meatballs: Bake for 20-25 minutes or until they are browned and cooked through.
5. Cook Spaghetti: While the meatballs are baking, bring a large pot of salted water to a boil. Add spaghetti and cook according to package instructions until al dente. Drain and set aside.
6. Prepare Sauce: In a large skillet, heat olive oil over medium heat. Add the marinara sauce and heavy cream, stirring to combine. Allow the sauce to simmer for 5-10 minutes until thickened.
7. Add Meatballs: Once the meatballs are done baking, add them to the sauce, gently stirring to coat them in the creamy mixture.
8. Combine Pasta and Sauce: Add the cooked spaghetti to the skillet, tossing to combine everything evenly. Allow it to simmer for a few more minutes to let the flavors meld.
9. Add Cheese: Sprinkle shredded mozzarella cheese over the top and cover the skillet to let it melt.
10. Garnish and Serve: Garnish with fresh basil before serving.

These steps will guide you in creating this incredible dish effortlessly.