Preheat your oven to 400°F (200°C).

Wash baby potatoes and cut into halves or quarters.

Slice smoked sausage into 1/4-inch rounds.

In a small bowl, combine ranch seasoning, garlic powder, onion powder, and black pepper.

Place potatoes in a large bowl. Drizzle with olive oil and sprinkle with half the seasoning mixture. Toss to coat.

Line a baking sheet with parchment paper or lightly grease it.

Spread potatoes evenly on the baking sheet. Scatter sliced sausage over the top.

Bake for 35-40 minutes, stirring halfway through, until potatoes are golden brown and tender.

Remove from oven. Sprinkle shredded cheddar cheese over potatoes and sausage. Return to oven for 5 minutes, until cheese is melted and bubbly.

Garnish with chopped parsley and serve hot, with sour cream on the side if desired.