Select Sear/Sauté and set it to Medium-High. Allow the pot to preheat for 5 minutes. Select Start/Stop to begin.

Put the butter, onion, and garlic in the preheated pot and sauté until the onion is softened about 3 minutes.

Add the chicken or turkey, potatoes, and broth to the pot—season with salt and black pepper. Assemble the Pressure Lid, ensuring the pressure release valve is in the Seal position.

Select Pressure and set it to High. Set the time to 10 minutes, then select Start/Stop to begin.

When pressure cooking is complete, quickly release the Pressure by moving the pressure release valve to the vent position, and carefully remove the lid when the Pressure has finished releasing.

Select Sear/Sauté and set it to Medium-High. Add the frozen vegetables and cream to the pot. Stir until the sauce thickens and bubbles, about 3 minutes. Select Start/Stop to begin.

Lay the piecrust evenly on the filling mixture, folding over the edges if necessary. Make a small cut in the center of the crust so that steam can escape during baking.

Close the Crisping Lid. Select Broil and set the time to 10 minutes. Select Start/Stop to begin.

When cooking is complete, remove the pot from the Ninja Food and place it on a heat-resistant surface. Let the potpie rest for 10 to 15 minutes before serving.