In a small bowl, combine melted butter, garlic, onions, chives, salt and pepper. In a larger bowl, combine potatoes and green beans. Pour butter mixture over top and toss to thoroughly coat.
Line a large baking sheet with parchment paper. Pour potato mixture on to baking sheet and spread out to make an evenly covered layer. Put in oven and bake for 30 minutes.
Remove from oven and add kielbasa evenly around sheet. Return to oven for another 20 minutes.
Remove from oven and immediately sprinkle with cheese. Let rest until cheese is melted before serving.
Keyword butter, cheese, colby jack, green beans, kielbasa, potato, sheet pan dinner