Preheat oven to 400F
In a large baking pan, grease bottom with butter lightly & spread 1 Tablespoon of oil over the pan as well, set aside.
In a large bowl put the cubed potatoes, 2 Tablespoons of olive oil, garlic, onions, sausage, broth & all seasonings, EXCEPT the Bacon & Parmesan Cheese.
Toss together until everything is evenly distributed & covered.
Pour into the baking pan, spreading it out as much as possible.
Put into the preheated oven & cook for 45 minutes to an hour, gently stirring every 15 minutes, until the potatoes are golden brown on the outside & soft in the middle.
5 minutes prior to it being fully cooked, sprinkle the cheese and bacon on top.
Enjoy!