1/3 cup (3 ounces) 1/3-less-fat cream cheese, softened  | 
                                                1 teaspoon minced fresh chives  | 
                                                1 teaspoon chopped fresh flat-leaf parsley  | 
                                                1 teaspoon chopped fresh thyme  | 
                                                1 teaspoon plain low-fat yogurt  | 
                                                1/2 teaspoon lemon juice  | 
                                                1 garlic clove, minced  | 
                                                3 tablespoons dijon mustard  | 
                                                1 tablespoon chopped fresh dill  | 
                                                1 tablespoon water  | 
                                                2 teaspoons honey  | 
                                                6 (1-ounce) slices rye bread  | 
                                                6 bibb lettuce leaves, cut in half  | 
                                                12 ounces cold-smoked salmon, cut into thin strips  | 
                                                24 (1/4-inch-thick) slices plum tomato  | 
                                                24 (1/8-inch-thick) slices cucumber  | 
                                                3 hard-cooked large egg whites, chopped  | 
                                                dill sprigs (optional)  |