**1. Cook the Beef:**
- In a large skillet over medium heat, cook the ground beef until browned, breaking it apart with a wooden spoon. Drain any excess grease.
**2. Sauté Aromatics:**
- Add the diced onion and minced garlic to the skillet. Cook for 2-3 minutes, until softened and fragrant.
**3. Add Gnocchi and Liquids:**
- Stir in the gnocchi, beef broth, heavy cream, ketchup, mustard, Worcestershire sauce, salt, and black pepper. Mix well to combine.
**4. Simmer:**
- Bring the mixture to a gentle simmer. Cover the skillet and cook for 5-7 minutes, or until the gnocchi is tender and the sauce has thickened.
**5. Add Cheese:**
- Reduce the heat to low. Stir in 1 cup of shredded cheddar cheese until melted and smooth.
**6. Serve:**
- Sprinkle the remaining 1/2 cup of cheese on top and let it melt. Garnish with optional toppings like diced pickles, parsley, or crispy bacon bits. Serve hot.