Preheat your oven to 350°F.
In a large skillet, cook the ground beef over medium heat. Add garlic powder and Italian seasoning while it cooks.
While the beef is cooking, boil the tortellini just until tender (al dente), following the package instructions. Drain and set aside.
Once the beef is browned, drain the excess grease.
Add the pasta sauce and ricotta cheese to the skillet. Stir everything together until well combined and the cheese melts.
Gently mix in the cooked tortellini.
Lightly grease a 9×13 baking dish, then pour the mixture into it.
Sprinkle mozzarella and parmesan cheese evenly on top.
Bake on the middle oven rack for 20 minutes.
Switch the oven to broil on high, and cook for 3 more minutes to get the top golden and bubbly.
Take it out of the oven and serve warm.