I prefer to cook stuffed peppers in the oven, but if I have to be out for several hours then I pop them into the CP. I never use minute rice for ANYTHING and I wouldn't for the peppers either. If you're cooking these for 4 to 6 hours you can safely use regular rice and the rice will be soft when the peppers are done. The CP does a great job of cooking stuffed peppers and the sauce is outstanding. Be careful not to use too much liquid since the peppers give off liquid of their own.