4 potatoes
3 med. tomatoes, sliced
1/2 c. grated cheese
1/2 tsp. salt
1/4 tsp. oregano
2 tbsp. butter
1 tbsp. olive oil
1 onion, sliced thin
1/2 c. Provolone cheese, shredded
1/8 tsp. pepper

Peel and slice potatoes 1/4" thick. Oil large casserole with olive oil. Arrange potatoes, tomatoes and onions in layers. Sprinkle each layer with the cheeses and other seasonings. Repeat, ending with a layer of potatoes sprinkled with cheese. Dot with butter. Bake at 400 degrees for 50 minutes or until potatoes are tender. 4 to 6 servings.