Creating this delicious Meatloaf with Mushroom Gravy is not just simple; it’s also incredibly satisfying. Follow these steps to achieve the perfect dish:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Prepare the Meatloaf Mixture: In a large bowl, combine the ground beef, breadcrumbs, chopped onion, minced garlic, milk, egg, Worcestershire sauce, salt, pepper, and thyme. Mix until well combined.
3. Shape the Meatloaf: Transfer the meat mixture into a loaf pan or shape it into a loaf on a lined baking sheet.
4. Bake the Meatloaf: Place the meatloaf in the preheated oven and bake for 60 minutes, or until the internal temperature reaches 160°F (70°C).
5. Let It Rest: Once cooked, remove from the oven and let the meatloaf rest for about 10 minutes before slicing.
6. Prepare the Mushroom Gravy: In a saucepan, melt the butter over medium heat. Add the sliced mushrooms and sauté until browned, about 5 minutes.
7. Create a Roux: Sprinkle the flour over the mushrooms and stir to combine. Cook for 1 minute.
8. Add Broth: Gradually whisk in the beef broth, ensuring there are no lumps. Allow the mixture to simmer and thicken.
9. Finish the Gravy: Stir in the heavy cream. Season with salt and pepper to taste and let it simmer for an additional 2-3 minutes until thickened.
10. Serve: Slice the meatloaf and plate it, generously drizzling the mushroom gravy on top. Garnish with fresh parsley, if desired.

These clear instructions help ensure that you will be able to create a spectacular dish that everyone will love.