Scalloped Potatoes and Ham

INGREDIENTS

• 1/2 cup butter
• 1/2 cup flour
• 2 teaspoons salt
• 1/2 teaspoon pepper
• 3 cups milk
• 3 cups ham, cooked
• 1 large green pepper, chopped
• 1 large onion, chopped
• 1/2 cup cheddar cheese, shredded
• 5 cups potatoes, pared and sliced