My parents like to only eat Lean Cuisine and other frozen meals, as well as going out to restaurants. My mom used to cook when we all lived at home, but I'm married and haven't lived at home for 6+ years, and my brother moved out over the summer. Plus both of my parents work now. So I guess there isn't a lot of time for quality, fresh, less-processed food.
In order to appeal to their frozen food niche, I prepared a nice big batch of Marinara Magnifica and froze it in individual servings in ziploc bags. This way all they have to do is boil some pasta and reheat the sauce and then they have a healthy, delicious dinner. Hope it works!