Drain the soybeans, if necessary, and place them in a blender or food processor with 1 cup fresh water. Grind until the soybeans resemble a coarse batter. Transfer to a large bowl. Add the soaked bulgur and sauteed vegetables to the soybeans. Stir in the tomatoes, breaking them up into bite-sized pieces. Add tomato paste, parsley and 1 cup of the feta. Mix well. Spread into the baking pan and sprinkle the remaining feta on top. Cover and bake for 30 minutes at 190ºC ., then uncover and bake 15 minutes more with the oven turned down to 180ºC . Serve hot.