This easy pressure cooker tuna noodle casserole without cream of mushroom will bring you back to your childhood. If you're looking for a new Instant Pot recipe to try this is it!
Place all ingredients except for half and half and cheese into your Instant Pot and gently stir together.
Put lid on and close steam valve.
Set to pressure high for 3 minutes.
Do a quick release and open the pot.
Slowly stir in half and half and cheese (can use less or more cheese depending on your taste). Put lid back on ajar and allow to sit for about 3 minutes so it can thicken up and cheese can melt.
Then take lid off. The longer it sits the thicker it will become. (you can add some hot liquid in a bowl with some cornstarch then add back into the pot to thicken quicker too) Serve!