Using a 2-inch square cutter, cut 12 squares from frozen bread slices, discarding scraps. Cover with damp paper towels, and let bread thaw slightly, approximately 15 minutes.
Using the same cutter, cut 12 squares from smoked salmon slices, discarding scraps or saving them for another use.
Place a salmon slice on each bread square. Brush salmon with Mustard-Dill Vinaigrette.
Garnish each canapé with cabbage, capers, a lemon curl, and a dill sprig.
Recipe by TeaTime Magazine at https://teatimemagazine.com/salmon-canapes-recipe/