Open-Faced Salmon Sandwiches with Herb Cucumber Relish

INGREDIENTS

• 1/2 cup Hellmann's® or Best Foods Organic Original Mayonnaise
• 1/4 cup finely chopped cucumber
• 3 Tbsp. finely chopped red onion
• 1 Tbsp. finely chopped fresh herbs, (dill, tarragon or parsley)
• 1 tsp. Maille® Dijon Originale Traditional Dijon Mustard
• 4 slices pumpernickel bread, toasted
• 1 cup lightly packed arugula
• 4 slices beefsteak tomato
• 8 ounces salmon fillet, broiled or poached, cut into 4 pieces