Toasted Roasted Cheese and Onion Sandwich

Ingridients of Toasted Roasted Cheese and Onion Sandwich:

• 2 slices bread , your choice
• 2 -3 slices sweet onions , very thin slices (walla walla type, more if you wish)
• 2 -3 ounces of aged sharp cheddar cheese , sliced
• butter or margarine , to spread
• fresh ground pepper