Our standard meals for similar hikes (and using a MSR Pocket Stove.)

Lipton and other branded rice or noodle (non milk required) packages. Depending on your appetites, one pack will feed 2 if supplemented with other foods. The package directions usually state to let simmer for 15 minutes which unless you are low on fuel, is not that bad. On the other-hand, plenty of experience has found that once the water and package contents come to a boil which is not very long with a stove, turn the stove down as low as it will go and let simmer for 5-6 minutes then remove. Keep it covered and the rice will assorb the rest of water on it's own.

Idahoan Mashed Potato Flakes. Again, one package is enough for 2 depending on appetite. These packages only require 2 cups of boiling hot water added with no further cooking time needed.

All of the above single packages can be found in almost any grocery store and usually cost less then a dollar.

As for meat or other protein, considering this is only an overnight hike, add a couple of packages of Tuna or a couple of small cans of chicken, turkey etc. These each only weigh a few ounces and can be added to the above rice/noodles or potatoes. If you frequent fast food restaurants, be sure to snag some of the small single packs of Teriyaki, BBQ sauces etc as they can add flavor to all the above.

As for dinner veggies, on a one day hike, we usually skip altogether or bring a few baby carrots that can be munched on during the day or with dinner.