Preheat your oven at 180° C.
Prepare your pie crust, roll it out in the mould, make some holes to prevent air bubbles and put it in the oven for a few minutes.
Mix together the chickpea flour, miso, nutritional yeast, garlic powder, lemon juice, herbs and the mustard with a bit of water to obtain a thick batter. Spread it over the crust.
Cut the tomatoes into slices and cover the previous mixture. Put it in the oven for 30-40 minutes, or until the tomatoes look grilled on the surface.
Let cool, serve and enjoy.

1 pie crust
2-3 tablespoon dijon mustard, to taste
2 tablespoon nutritional yeast
1 tablespoon miso
3 tablespoon lemon juice
1 teaspoon garlic powder
5 tablespoon chickpea flour
Water
Herbs (thyme, rosemary, etc.) to taste
4-5 medium tomatoes