Set the instant pot on SAUTE function. Add 1 teaspoon of oil.
Add in chopped garlic and sauté it for a minute until it turns light brown.
Next add the sliced mushrooms and again sauté it for a minute, add chopped spinach and ½ teaspoon salt.
Mix everything and cook for a minute or two until the water from spinach dries out.
Take it out and set it aside.
CANCEL the SAUTE button
Next in the same pot add polenta, water and salt.
Seal the lid and select PORRIDGE/OATMEAL function. Set the settings to 20 minutes. Once the cycle is over, allow the pressure to release naturally for 10 minutes.
Serve this creamy polenta hot with sautéed mushrooms and spinach on top. Garnished with chilli garlic oil.