Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Dice the eggplant, zucchini, and red bell pepper into bite-sized cubes.
Toss the vegetables on the baking sheet with the olive oil, sea salt, and black pepper until evenly coated.
Roast the vegetables for 20-25 minutes, tossing halfway through, until they are tender and slightly charred around the edges.
While the vegetables roast, heat a large non-stick skillet over medium-high heat and add the ground turkey.
Cook the turkey, breaking it up with a spatula, until it is browned and cooked through.
Stir in the tomato puree, dried oregano, and garlic powder, then reduce heat to low and simmer for 5 minutes.
Remove the roasted vegetables from the oven and fold them gently into the turkey mixture.
Garnish with freshly chopped basil and serve warm.