Wash the tomato, dab dry, cut in half and remove the seeds. Cut tomato halves into fine cubes. Wash the parsley and sage, dab dry and put something aside for garnishing. Cut 4 parsley and 4 sage leaves into thin strips. Peel and finely dice the shallot.
Mix tomato, shallot, herbs, vinegar and oil in a bowl. Season with pepper and a little salt. Spread the baguette slices with fat and cover each with a slice of ham. Put 1 teaspoon of tomatoes on each slice and serve garnished with sage and parsley