-
Pour the olive oil on a dinner plate. Sprinkle with the vinegar and scatter the capers over the surface. Sprinkle with Mrs. Dash seasoning. Spread the tomato paste over one side of the bread slices.
-
Press the tomato paste side of bread slices into the olive oil mixture. If any capers fail to stick, distribute them manually over the surfaces.
-
On the dressed side of two bread slices, layer the onion slices, eggs, basil leaves, tuna and cucumber. Top with the remaining bread slices.