01 - Preheat your oven to 400°F (200°C).
02 - Wash the baby potatoes and cut them in half or quarters for even cooking.
03 - Slice the smoked sausage into 1/4-inch thick rounds.
04 - In a small bowl, mix together the ranch seasoning, garlic powder, onion powder, and black pepper.
05 - Place the halved potatoes in a large bowl. Drizzle with olive oil and sprinkle with half of the ranch seasoning mixture. Toss until evenly coated.
06 - Line a baking sheet with parchment paper or lightly grease it to prevent sticking.
07 - Spread the seasoned potatoes on the baking sheet in a single layer, ensuring they are not overcrowded.
08 - Scatter the sliced smoked sausage over the potatoes.
09 - Roast in the oven for 35-40 minutes, or until the potatoes are golden brown and tender, stirring halfway through.
10 - Remove the baking sheet from the oven and sprinkle the shredded cheddar cheese over the potatoes and sausage. Return to the oven and bake for an additional 5 minutes, or until the cheese is melted and bubbly.
11 - Garnish with freshly chopped parsley and serve hot with a dollop of sour cream, if desired.