Heat the olive oil in a large oven-safe pan over medium heat. Add the ground turkey, breaking it up with a spatula or wooden spoon. Add the seasonings and cook the meat until it's no longer pink on the outside. Add the spinach and stir it into the beef. Once it starts to wilt add the marinara. Bring the sauce to a simmer and add the tortellini stirring to coat it evenly in the sauce.
Sprinkle the mozzarella and Parmesan over the top, cover the pan loosely with tin foil (or oven-safe lid), and pop it in the oven. Bake it for 15 minutes, uncover it and let it bake for another 5-10 minutes.
Notes
You can use ground turkey or substitute lean ground beef or Italian sausage.If you don't have a large oven-safe pan, you can transfer the sauce, meat, and pasta to a baking dish to bake it.