Add water and onion soup mix to the bottom of the pressure cooker bowl. Stir. Add turkey and 2 tbsp marinara sauce. Spoon water mixture over the meat and use the back of a spoon to spread the marinara over the turkey slightly.

Place the lid on the cooker, seal the vent and set to pressure cook on high for 25 minutes for frozen turkey.

Let pressure naturally release (meaning leave it alone after it's done) for 5-10 minutes. Then move the valve open and manually release the pressure. Open the lid.

Use a wooden spatula to break the ground turkey up into small pieces and stir into the liquid. Add zucchini noodles and remaining marinara sauce into the pot and stir. Set the lid back on and let the noodles sit in the warm sauce for a couple minutes. Use a slotted spoon to remove onto serving plate. Top with shredded parmesan cheese if desired (note: nutrition information does not reflect cheese)