Preheat oven to 400°, line baking sheet with several layers of foil. Drizzle with oil and spread

Combine sausage, potatoes, and onion in large bowl, drizzle with oil, season with salt and pepper, paprika and thyme to taste. Toss together with hands until evenly mixed.

Spread evenly on baking sheet. Place in oven for 45 minutes stirring every 15 minutes, until golden brown and tender.

Remove from oven cover with cheese and return to oven for an additional 5 minutes