Line a baking sheet with parchment paper or aluminum foil.
Spread all veggies, potatoes, and sausage on pan.
Drizzle with oil and sprinkle seasonings on top.
Cover the pan with aluminum foil. Bake for 30 min. Then remove cover and stir. Keep cover off and cook another 10 minutes or until potatoes are soft and the sausage is cooked.