Preheat oven to 180ºC . In small nonstick skillet heat 1 tspmargarine until bubbly and hot. Add onion and saute until translucent. (Donot brown). In bottom of 1 litre casserole spread 0.75 cup of macaroni. Topwith 5.5 oz cheese, then half the sauteed onion. Repeat layers. In smallbowl combine milk, egg, salt, and pepper, mixing well. Pour over macaronimixture and sprinkle with paprika. Dot with remaining margarine and bakeuntil set, 20-25 minutes. Do not overcook.
Per serving: 456 cal, 25 g pro, 21 g fat, 40 g carbohydrate, 727 mgsodium, 185 mg cholesterol.