Whole wheat or whole grain pasta can be substituted for regular pasta. Take the stovetop cook time on the box, divide by 2 and add 1. e.g. for a cooking time of 6 to 8 minutes, the pressure cook time would be 4 minutes (Midpoint of 6 to 8 minutes = 7; 7 divided by 2 = 3.5; 3.5 + 1 = 4.5 minutes; round down to 4).