To a mixing bowl, add plain Fage Greek Yogurt.
To this add egg-free mayonnaise, salt, pepper, ginger paste, finely chopped veggies like bell pepper, onions, grated carrots, chopped parsley and chopped jalapeno.
Give it a mix. Keep it aside for now.
Heat oil in a pan. Temper mustard seeds and once they crackle, add roughly torn curry leaves to it.
Fry for 10 seconds. Pour this tempering over the yogurt mixture.
Mix well. The sandwich stuffing is now ready.
Arrange 3 Three Bakers Bread slices over a tray and spread this yogurt mixture over each slice.
Top it with some lettuce leaves.
Close it like a sandwich using another bread slice and toast it in a pan using butter. You can even grill it in a Panini Maker or toast the bread in a regular toaster first and then make the sandwich. If you like a cold sandwich, consume without toasting.
Cut in any desired shape and serve.
Serve this sandwich with some ketchup or chutney.