Bake the Potatoes: Preheat oven to 400°F. Scrub the potatoes, pat dry, and prick with a fork. Rub each with olive oil and sprinkle with a little salt. Place on a baking sheet and bake for 50-60 minutes until tender.

Cook the Steak: While potatoes bake, season steak slices with salt, pepper, and optional steak seasoning. Heat a skillet over medium-high heat, add a bit of oil, and sear the steak for about 2-3 minutes per side until cooked to your liking. Remove from heat and set aside.

Make the Sauce: In a small saucepan over medium heat, melt butter. Add minced garlic and cook for 1 minute. Stir in heavy cream, onion powder, and Parmesan cheese. Simmer gently for 3-4 minutes until thickened. Stir frequently to avoid burning. Remove from heat.

Assemble: Once potatoes are done, slice them open lengthwise and fluff the insides with a fork. Spoon the cooked steak into each potato, then pour the creamy Parmesan sauce over the top.

Garnish & Serve: Sprinkle with chopped parsley if desired. Serve warm with a side salad or veggie of choice!