I don't think there is any argument that cooking can be a pleasant activity. However, the truth is that's the only option because we need to eat every day.
Tonight I can get home from work and spend time with my partner cooking and it'll be great. And after work tomorrow, if we want to spend time together, we can cook or eat out. And the day after that... more cooking.
The opportunity here is not that we'll never cook again but, instead, that maybe we can do something else together once in a while.
Another option is to live somewhere where there are healthy options (for whatever definition of healthy you choose) that you can purchase. You can then (or I can) be done in 10-15 minutes. Whether that's a cafeteria, a convenience store, a restaurant, a waiter.
Examples: Working at a company that serves breakfast lunch and dinner I can leave my desk, get food, eat and be back at my desk in 15 minutes. Or I can grab food and be back at my desk in 5 minutes.
Living in Japan I could stop at a convenience store and get reasonably healthy food on the way to, from home (at least in Tokyo you're likely to walk in front of probably an average of 6 convenience stores between your place of work and your home as well as many other food sources).
Living in the bay area there are places like Whole Foods that have large relatively healthy salad/meal bars. I happen to live a 2 minute walk from one.
Note: Personally I like taking time out to eat. I dislike spending 15-60 minutes making something that's consumed in 10 but I like spending time making something and sharing it. But still, I notice that I can eat pretty quick if the food is pre-prepared.
Tonight I can get home from work and spend time with my partner cooking and it'll be great. And after work tomorrow, if we want to spend time together, we can cook or eat out. And the day after that... more cooking.
The opportunity here is not that we'll never cook again but, instead, that maybe we can do something else together once in a while.