Preheat oven to 375°F (190°C). Line a baking sheet with parchment paper.
Slice eggplants into 1-inch rounds. Drizzle with olive oil and season with salt and pepper.
Arrange eggplant slices on the baking sheet and roast for 20 minutes, flipping halfway through.
While eggplant roasts, heat olive oil in a skillet. Add onion and garlic, sauté until soft.
Add vegan ground beef to the skillet and cook for 5-7 minutes, breaking it up with a spoon.
Stir in marinara sauce, oregano, basil, thyme, salt, and pepper. Simmer for 5 minutes.
Once eggplant is done, layer the roasted slices in a baking dish.
Spoon the vegan "beef" mixture over the eggplant slices. Top with shredded vegan mozzarella.
Bake for 10 minutes, until the cheese is melty and bubbly.
Garnish with fresh basil. Serve hot, and enjoy the flavor explosion.