How To make Cheddary Scalloped Potatoes

2 tb Margarine
1 sm Onion, sliced
1 cn (10 1/4 oz.) Campbell's NEW
-Broccoli Cheese Soup 1/2 c Milk
1/8 ts Pepper
4 md Potatoes, cooked and sliced
-(about 3 1/2 cups) In skillet over medium heat, in hot margarine, cook onion until tender. Stir in soup, milk and pepper. Heat to boiling. Add potatoes. Reduce heat to low. Cover, simmer for 5 minutes, or until hot and bubbling. stirring occasionally. Garnish with sage if desired. Makes 4 servings. Recipe may be doubled. Posted by Stephen Ceideberg; October 14 1992.