1 envelope Lipton onion soup
1 container (16 oz.) sour cream
2 c. shredded swiss cheese
1 c. Hellmann mayonnaise

Preheat oven to 375°F. In a 1 qt. casserole combine soup mix, sour cream, 1-3/4 c. swiss cheese and mayonnaise.

Bake uncovered 20 minutes or until heated through. Sprinkle with remaining 1/4 c. of cheese. Serve with sliced French bread or your favorite chip.