Prep the Paste: Preheat your oven to 400°F (200°C). In a small bowl, mix the softened butter, Parmesan, garlic, Italian seasoning, and paprika until it forms a thick paste.
Flavor Layer: Spread the Parmesan butter mixture evenly onto the bottom of a 9x13 baking dish (or directly onto the bottom flat side of each potato).
Assemble: Place the potato rounds flat-side down into the butter mixture, pressing firmly so they make full contact with the cheese. Season the tops with a little extra salt and pepper.
Roast: Bake for 30–35 minutes without flipping. You want the potatoes to be fork-tender and the cheese underneath to form a deep, golden-brown crust.
The Reveal: Remove from the oven and let them rest for 2 minutes (this helps the crust set). Carefully flip the potatoes over using a spatula to reveal the crispy Parmesan seal.
Serve: Garnish with plenty of fresh parsley and serve hot while the crust is at its peak crunch.