Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper for easy cleanup.
Wash the Russet potato thoroughly and cut it into even wedges, then slice the chicken breast into thin strips.
In a large mixing bowl, combine the potato wedges and chicken strips with olive oil, garlic powder, smoked paprika, sea salt, and black pepper.
Toss everything together until the potatoes and chicken are well-coated in the oil and spices.
Arrange the mixture in a single layer on the prepared baking sheet, ensuring they aren't overcrowded to allow for maximum crispiness.
Roast in the oven for 25 to 30 minutes, flipping halfway through, until the potatoes are tender and the chicken is fully cooked.
Remove from the oven, sprinkle the grated parmesan cheese evenly over the top, and return to the oven for 2 to 3 minutes until the cheese is melted.
Garnish with freshly chopped parsley before serving hot.