Preheat oven to 200C/400F.
In a bowl, mix all the ingredients for the soy meat, and let the TSP granules soak for about 10 minutes.
Drain them and set aside.
In a large frying pan, saute the onions in 3 Tbsps of oil. Add the rest of the stuffing ingredients, plus the soaked soy granules.
Cook stirring occasionally, for 10-15 minutes.
Cut each eggplant in half, lengthwise.
With a spoon or a knife, carve into the flesh of each eggplant and some of the pulp, making a hole for the stuffing.
Place the eggplants halves on a baking tray covered with parchment paper.
Add the veggie-soy stuffing in each half.
Drizzle with the remaining oil and lemon juice.
Bake for 30 minutes, or until tender. Optional - serve with grated vegan cheese on top.