Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Slice the eggplant into half-inch thick rounds and arrange them in a single layer on the prepared baking sheet.
Brush both sides of the eggplant slices with olive oil and season evenly with sea salt and black pepper.
Roast the eggplant for 20 minutes, flipping halfway through, until the centers are soft and the edges are lightly browned.
While the eggplant roasts, brown the ground turkey in a non-stick skillet over medium heat until no pink remains.
Add the minced garlic and dried oregano to the skillet, sautéing for one minute until the aromatics are fragrant.
Stir in the tomato puree and simmer the meat sauce on low for five minutes to allow the flavors to meld.
In a small oven-safe baking dish, spread a thin layer of sauce followed by half of the roasted eggplant slices.
Top with half of the remaining sauce and half of the mozzarella cheese, then repeat the layers once more.
Sprinkle the parmesan cheese over the top and bake for 15 minutes until the cheese is melted and bubbly.