Scalloped Ham, Potatoes, And Cheese Recipe

• 3/4 pound thinly sliced cooked ham; or possibly 1 can luncheon meat, thinly sliced
• 1 chopped small onion
• 4 to 6 thinly sliced, pared raw potatoes
• 3 tbsp. flour
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1 c. grated process sharp American cheese (1/4 lb.)
• 1 c. lowfat milk
• 2 tbsp. butter
• 1/4 c. catsup

Directions