1/2 pound cheddar cheese, shredded
1/2 pound Velveeta cheese
1/2 pound American cheese slices
10 potatoes, peeled, diced
2 onions, chopped
1/2 cup butter
1 (16 ounce) package lasagna noodles
Grease a lasagna dish; set aside.
Place all cheese together in a mixing bowl; set aside.
In a large pot, boil potatoes; drain.
In a frying pan, sauté onion in butter.
In a large pot of boiling water, cook noodles according to package directions.
Add 1/2 of the cooked onion to potatoes; add cheese to potatoes and mash until cheeses melt.
Place 1/2 of the remaining onions on the bottom of baking dish.
Layer noodles and potatoes, beginning and ending with noodles.
Top with remaining onions.
Cover with aluminum foil.
Bake at 325 degrees F for 20 minutes.