01 -
Set the oven to 200°C and line a baking sheet with parchment paper.
02 -
Combine diced potatoes, olive oil, ranch seasoning mix, salt, and pepper in a large bowl. Mix until all pieces are evenly coated.
03 -
Arrange potatoes in a single layer on the prepared baking sheet. Roast for 25–30 minutes, stirring once halfway, until golden and crispy.
04 -
Sprinkle shredded cheddar and grated Parmesan evenly over the potatoes. Return to the oven and bake for an additional 5 minutes, or until cheese is fully melted and bubbly.
05 -
Transfer roasted potatoes to a serving dish and garnish with chopped fresh parsley if desired.