Heat a large skillet over medium heat. Add a drizzle of olive oil.

Add ground turkey or beef to the skillet, breaking it into small pieces. Season with salt, pepper, oregano, and basil. Cook until browned, about 5-7 minutes.

Stir in minced garlic and cook for an additional minute until fragrant.

Pour marinara sauce over the cooked meat, stirring to combine. Bring the mixture to a simmer.

While the sauce simmers, layer the zucchini slices in parallel to the skillet, ensuring they overlap slightly.

In a bowl, combine ricotta cheese, Parmesan, egg, and a pinch of salt and pepper. Mix well until smooth.

Spoon the ricotta mixture over the zucchini, spreading it evenly. Top with half of the shredded mozzarella.

Add another layer of zucchini, then the marinara mixture, followed by the remaining mozzarella cheese on top.

Cover the skillet with a lid and reduce heat to low. Let it cook for about 20-25 minutes, or until the cheese is bubbly and the zucchini is tender.

Remove from heat, let it cool slightly, then garnish with fresh basil before serving.