MIX cream cheese product, horseradish, lemon zest and juice in medium bowl until well blended. Stir in cucumbers. Refrigerate 30 min.
HEAT broiler. Place bread slices in single layer on baking sheet; brush with oil. Broil, 6 inches from heat, 2 min. or until golden brown.
SPREAD cream cheese mixture onto toast slices; top with salmon.
serving size = 1 piece (43 g)