Open Instant Pot. Select Saute. Add in sausage, pork belly and saute for about 5 minutes.
Add in shrimp, mushrooms, salt and cook for another 5 minutes.
Turn off saute. Remove ingredients.
First, add in uncooked rice and water into Instant Pot liner.
Next, add in sauteed ingredients.
Close Instant Pot. Select Rice function for 15 minutes. When done, quick release.
Add in soy sauce to taste, mix and serve warm.