These delicious sandwiches are a bit different than normal tomato sandwiches. I love the extra flavour that the sourcream/cheese mixture gives and the oregano really adds a nice flavour as well.
Combine the cream cheese, sour cream and oregano in a small bowl and mix well. Season with salt and pepper.
Trim the crusts from the bread. Spread the cream cheese mixture on the bread slices. Arrange the tomatoes on 1/2 the bread slices. Top with the remaining bread slices.