In a bowl, mix the cream cheese, mayonnaise, and Dijon mustard until well combined. Season with salt and pepper to taste. This will be the creamy spread for the layers.
Trim the crusts off the bread slices to form even rectangles.
Place a layer of bread slices on a serving platter or cake stand, covering the entire surface.
Spread a generous layer of the creamy mixture over the bread.
Add a layer of shrimp on top of the creamy mixture.
Repeat the layers of bread, creamy mixture, and shrimp until you have used all the ingredients, ending with a layer of bread on top.
Spread the remaining creamy mixture over the top and sides of the cake, creating a smooth finish.
Decorate the cake with cucumber slices, cherry tomatoes, and dill sprigs. Be creative with the design!
Refrigerate the cake for at least 1 hour before serving to allow the flavors to meld together.
Slice the smrgstrta and serve it as an impressive appetizer or main dish at your gathering.
