First, preheat oven to 425 degrees. Also, add sheet tray so it heats up.
Now, in a bowl mix all the above ingredients (reserving 1/2 cup cheese).
Next, take sheet pan out of oven (use oven gloves it will be hot) and spray well with cooking spray.
Now, add all the potato mixture evenly dividing in sheet pan. Then sprinkle remaining cheese on top.
Next, spray cooking spray all over top of potatoes and place in oven on middle rack 25 minutes.
Now, place on top rack and raise heat to 500. Cook 10-15 minutes or until top browns.
Finally, sprinkle with salt and cut into small pancakes.