Scalloped Potatoes in the Microwave

This is my own recipe for scalloped potatoes.

I use enough potatoes to fill a large microwave safe bowl that has a microwave safe lid. I spray the sides and bottom of the bowl with cooking spray.

Peel and slice enough potatoes to fill the bowl.
Onion-diced
2 large cans of cream of chicken soup
Mix the cans of soup and a small amount of water in a separate bowl. You don't want the soup to be thin, but of medium consistency. Pour over potatoes and onions. Pepper and stir to mix. Place bowl in the microwave and cook 1 hour covered on high. Test the potatoes to see if they are done. Continue cooking the potatoes until they are done, stirring occassionally.
When the potatoes are done, add cheese of your choice and stir to mix. Add cheese to the top enough to cover the top. Put back in the microwave and cook until the cheese is melted.
Be careful when opening the bowl. Steam will come out.