Roasted Garlic Potatoes without parmesan milk

1 1/2 lbs fingerling potatoes , Sliced lengthwise in 1/2 3 ounces bacon , diced 3 ounces onions , sliced 1 -2 garlic clove , minced 3 fresh sage leaves ,[...]

4 large potatoes 1 head garlic 5 teaspoons olive oil 1/2 cup sour cream 4 ounces processed cheese , cubed (like Velveeta) pepper , to taste 4 slices bacon or[...]