In a large baking dish, combine the refrigerated tortellini, marinara sauce, pesto, and heavy cream. Stir everything together until the tortellini is evenly coated.
Sprinkle the shredded mozzarella cheese over the top of the tortellini mixture.
Cover the baking dish with foil.
Bake for 20 minutes.
Remove the foil and bake for another 10-15 minutes, or until the cheese is melted and bubbly and the tortellini is heated through.
Let it cool slightly before serving.
Notes
You can use any type of tortellini you like.
Feel free to add your favorite vegetables or protein to this bake.
For a spicier kick, add a pinch of red pepper flakes to the sauce.