I use Dominos, Papa John's, and Pizza Hut as frequent meal delivery services.
What my wife and I often do is only cook the healthy home cooked meals on weekends and freeze the extras for lunches and dinners throughout the week. Then my wife will occasionally cook during the week if she gets off a little early one day (her days range from 6-10 hours... mine are almost always 12 hours).
One of the keys to eating healthy is snacking on healthy food. I usually try to eat a banana and/or an apple for breakfast, though sometimes I opt for a Fiber One breakfast bar. This takes virtually no time to prepare.
For lunch, I always have some sort of vegetables and/or fruit along with maybe a sandwich or soup. This takes minimal time to prepare.
For dinner, the key is to remember you don't HAVE to have meat in every meal. Ideally, meat should be limited to only a few days per week for health reasons. Some days we will have salads which takes minimal time to prepare. Other days it will be soup and vegetables. And then some days it's pork or steak or whatever... again, along with some vegetables.
If you focus your meals around fruits and vegetables rather than around meat or pasta, you can make a lot more meals in a shorter amount of time and you will get healthier in the process.