2 slices reduced calorie bread
4 lettuce leaves
1/2 med. tomato, cut into 4 slices
2 oz. sliced cooked roast beef, fish or skinned turkey, chilled
2 thin slices red onion, separated into rings
1 tbsp. prepared horseradish
2 tsp. ketchup
1 tsp. reduced calorie mayonnaise

Enjoy!