In a mixing bowl, blend together softened cream cheese and Greek yogurt until smooth.

Stir in finely chopped chives, dill, and ground pepper until well combined.

Preheat your toaster to a medium setting and lightly toast the whole wheat bread for 2-3 minutes.

Carefully slice the tomatoes into 1/4-inch thick rounds.

Spread the creamy herbed mixture on one slice of the toasted bread and layer with sliced tomatoes.

Top with another slice of toast, then slice diagonally to serve.