INGREDIENTS
Cooking spray
5 cups
thinly sliced potatoes (sliced to around 1/8-1/4 inch thickness)
2 cups
extra thin sliced onions
2 cups
milk (start with 2 1/2 cups and add a little more if necessary)
1/4 cup
flour
3 tsp
salt
3/4 tsp
pepper
1/4
heaping cup grated Romano cheese (optional)