In a 6 qt pressure cooker, add all ingredients (including the Square Pot Pie Egg Noodles) except for the corn starch. Stir it. Set it "pressure cook" on high setting for 8 minutes. When done, begin venting but, do not open it until the valve indicator shows it's ready to open. Add corn starch and stir it. It'll thicken as you're stirring. Test to see if noodles are tender. If not, leave them in pressure cooker with lid on for 1-2 more minutes.
When soup has cooled, put in a covered bowl and store in the refrigerator for 3 or 4 days. Freeze for up to six months.