Smoked Sausage with Potatoes and Green Beans

1 lb. smoked sausage, sliced
3/4 lb. fresh green beans, trimmed
1 lb. red potatoes, cut into 1-inch chunks
1 medium onion, wedged
2 tsp. olive oil
1 tsp. salt (I prefer Kosher salt)
1 tsp. pepper
1/2 tsp. garlic powder

How to make it

Preheat oven to 425 degrees. In a large bowl, combine all ingredients and toss to coat; transfer to a 9x13 baking dish and cover with foil. Bake, covered, for 30 minutes. Remove foil, stir ingredients, and bake for 10-15 minutes more or until potatoes are tender.