Once meat is done, turn on the pan where the creamy base was and wait until bubbly (this shouldn't take too long), and add your meat, prawns and basil into the mixture. Add your stir fry and mushrooms if you opted to do so, and stir mixture for up to 5 minutes. Let it settle for up to 20 minutes. (Tip: As an alternative, you can use the stir fry as a side dish and not with the mixture).