Heat half the olive oil in a skillet over medium heat. Add turkey, salt, and Italian seasoning. Cook, breaking up meat, until browned, 5–6 min. Remove and set aside.
In the same pan, heat the remaining oil. Add zucchini and salt. Cook 4–5 min, then stir in garlic for 1 min.
Return turkey to pan, add marinara, and simmer 3–4 min until warmed and slightly thickened (add a splash of water if too thick).
Mix ricotta, Parmesan, and basil in a bowl. Spoon over the skillet mixture, letting it melt slightly. Top with basil and Parmesan.