1. Cook the bacon in a large pan over medium heat until crispy, then remove and set aside.
2. Cook the cheese tortellini in boiling water according to the package instructions, then drain and set aside.
3. In the same pan used for bacon, leave a small amount of bacon drippings for extra flavor.
4. Add minced garlic to the pan and sauté for about 30 seconds until fragrant.
5. Pour in heavy cream and add butter, stirring until butter is melted and fully incorporated.
6. Gradually add grated Parmesan cheese, stirring constantly until the sauce is smooth and thick.
7. If using, stir in cream cheese for extra creaminess until fully combined.
8. Add the cooked tortellini to the sauce, tossing gently to coat it evenly.
9. Crumble the crispy bacon and add it back to the pan, stirring everything together.
10. If desired, mix in additional ingredients such as spinach, broccoli, or cooked chicken.
11. Let the dish simmer for a couple of minutes to allow the flavors to meld together.
12. Garnish with fresh parsley and extra Parmesan cheese before serving.
13. Serve hot and enjoy this creamy, indulgent meal!