cut wash potatoes into 1/4 inch slices

spray 2quart microwave safe dish with cooking spray

spread 2 tablespoons pizza sauce in bottom

arrange 1/2potatoes in single layer

crumble have beef over potatoes salt and pepper

sprinkle half of mozzarella cheese and pizza sauce

repeat layers with potatoes beef salt pepper and remaining pizza sauce

sprinkle with parmesan cheese

cover tightly with plastic wrap

microwave on high for 20 minutes or until potatoes are done

let sit for 2 minutes