Hubby and I both can and do cook, but we also have health issues that can make it difficult. If only one of us is having a bad day, the other will cook, but we do often have days when neither of us is up to doing too much.
On my blog
I've posted my ground beef/tvp mixture. Freezing it ahead, so that it's scoopable, I can make a lot of quick, barely-cooking meals. I know it's not a no-cook method, but a reduced-cook method. I can microwave a cupful with a variety of seasonings.
But, we also keep a lot of no-cook foods in the house. Veggies that can be eaten raw, light cream cheese, canned fish products (not just tuna, but flavored tuna, salmon, mackerel, sardines - plain or in sauces, just watch the labels there can be added sugar and fat), rotisserie chickens, some deli meats. You can find better deli meats, but usually we also go the "semi-cook" way, using a crock pot to cook a turkey breast for example, and slicing it ourselves.
For me, cooking often isn't the biggest pain, it's clean-up. So, we keep a few disposable cookware (foil baking pans) and paper plates, and plastic silverware, and plastic cups for the "emergency" days when both of us aren't feeling well.
The crockpot really is our best friend. It's like cooking, without doing the cooking. I often make soup or stew in the crockpot, and we'll have several meals from it, either keeping the crock on low while eating from the crock for several meals during a day - or putting the crock in the fridge and bringing it ou the next day. I often make dishes that can be "transformed" easily, so it doesn't feel like we're eating the same dish every day. For example, I may make a relatively basic meat (roast, pork roast, turkey breast) and then add a sauce the next day.
I know some of this is still cooking, and that is a dilemma, because it's usually pretty expensive to have someone else do all the cooking for you, even if you're only eating 99 cent frozen dinners.
If money isn't an issue, there are a lot of meal delivery services you could try. Some are local only (check your yellow pages), and others are international. Instead of sticking with one (that you'll eventually get bored with), you could also rotate them, buying a week or two from one before moving on to another for a week or two.