The traditional and ideal way to prepare pesto is with a mortar and pestle, but you may use a mixer or blender. Put the basil, pine nuts, chopped garlic and Parmesan cheese in the blender or mixer and blend, adding the oil slowly, until a smooth cream forms.
griddle the turkey breasts on a very hot griddle. Once they are cooked, season with salt, ground pepper and lemon juice.
griddle the slices of Texas Toast, spread 4 slices with the prepared pesto, then place the turkey breast cut into small pieces and close with the remaining slices.