Pack the pasta and vegetables in a quart freezer bag. Pack the cheese and ¼ of the pesto dry mix in a small bag, add it and the oil packet to the other bags.
Cover the pasta and vegetables with 1½ cups near boiling water in the freezer bag. Seal well and put in a cozy for 15 minutes. Open bag and if any left over water, carefully drain off most of it, leaving a Tablespoon or two behind. Add in oil, pesto mix and mix well. Top with cheese and stir again.
One Pot Method:
Bring 1½ cups water and oil to a boil in a small pot. Turn off stove. Add in the pasta/veggie mix. Cover tightly and let sit for 15 minutes. Proceed as above.