01 -
Preheat oven to 220°C. Line a large rimmed baking sheet with a silicone baking mat or parchment paper and set aside.
02 -
Place diced potatoes in a large mixing bowl and drizzle with canola oil. Toss thoroughly to ensure all potatoes are evenly coated.
03 -
In a small bowl, whisk together all-purpose flour, cornstarch, taco seasoning, salt, and black pepper until well mixed.
04 -
Sprinkle the seasoning mixture over the oiled potatoes. Gently toss to ensure all pieces are evenly seasoned.
05 -
Spread the seasoned potatoes in a single, even layer on the prepared baking sheet, ensuring the pieces are not overcrowded to promote crispiness.
06 -
Bake for 20 minutes. Carefully flip the potatoes with a spatula and continue roasting for an additional 15 to 20 minutes until golden brown and crispy.
07 -
Divide the roasted potatoes among bowls. Top each portion with a generous spoonful of warmed nacho cheese sauce and a dollop of sour cream before serving.