Process the eggplant pulp by pulsing the food processor a couple of times.
Add the brown sugar, paprika, chili powder, thyme, cumin, and onion powder to the processor.
Pulse a few more times to combine.
Heat a pot over medium heat, add olive oil.
Add the diced onion and red pepper flake, cook for 4 - 5 minutes until the onions are translucent.
Add the garlic and cook until fragrant, about 1 minute.
Add the tomato paste and cook for about 2 minutes.
Add the balsamic vinegar and soy sauce, and stir.
Add the eggplant pulp mixture, drained lentils, and vegetable broth to the pot and let it cook down for about 5 minutes.
Add the chopped Roma tomatoes, and let cook for another 5 minutes.