Creating these delectable Steak-Stuffed Baked Potatoes with Parmesan Cream Sauce is a straightforward process. Follow these steps for a mouthwatering result:

1. Preheat the Oven: Preheat your oven to 400°F (200°C).
2. Bake the Potatoes: Scrub the russet potatoes under cold water. Pat dry and pierce each potato several times with a fork. Bake directly on the oven rack for about 45-60 minutes, until the skin is crispy and the insides are soft.
3. Prepare the Steak: While the potatoes are baking, heat olive oil in a skillet over medium-high heat. Season the steak with garlic powder, onion powder, salt, and pepper. Cook the steak for about 4-5 minutes on each side, or until it reaches your desired doneness. Remove from heat and let it rest for a few minutes before slicing into small pieces.
4. Make the Parmesan Cream Sauce: In a saucepan over medium heat, combine the heavy cream and half of the Parmesan cheese. Stir until the cheese melts and the mixture is smooth. Add the remaining cheese and sour cream, and continue to stir until fully combined. Season with salt and pepper to taste.
5. Stuff the Potatoes: Once the potatoes are done baking, remove them from the oven and let them cool slightly. Carefully slice each potato in half lengthwise and scoop out some of the flesh, leaving a small border. Mix the scooped potato flesh with the cooked steak and a bit of the Parmesan cream sauce.
6. Fill the Potatoes: Spoon the steak mixture back into the potato skins. Drizzle with additional Parmesan cream sauce and top with shredded cheddar cheese.
7. Final Bake: Place the stuffed potatoes back in the oven for another 10-15 minutes, or until the cheese is melted and bubbly.
8. Garnish and Serve: Remove the potatoes from the oven and sprinkle with freshly chopped chives or green onions before serving.

These simple steps will guide you in creating a mouthwatering dish that is sure to impress.