In a small bowl, mix together the horseradish sauce with the creme fraiche.
Spread over each of the 2 wraps.
Divide the watercress, finely diced red onion and slices of cooked roast beef equally between the wraps.
Fold each wrap up tightly.
2 Mission Deli Mediterranean Herb Wraps
2 tbsps horseradish sauce
4 tbsps half fat creme fraiche
1 big handful of watercress
1/2 small red onion
4 medium thick slices cooked roast beef, or 6 thin slices