Measure 1 gallon of hot, not boiling, water into a large bowl.
Add entire pouch of potatoes all at once, using a wire whip to distribute evenly and wet all potatoes. Let stand 1 minute until the potatoes are fully hydrated.
Place the mashed potatoes in the center of the dish. Add 5 Mulay's® Meatballs and top with 3 oz. marinara sauce and sprinkle with shredded parmesan cheese.