As someone who likes cooking but not every day; I would ask you what is it that you don't like about cooking? The smell, the texture, the time it takes, the level of attention it requires?
Anxiety is usually the culprit with me. Some meals, I just don't like and I loathe to make them. Others are not really that good and are a bit challenging to make. I usually avoid those as if they don't exist.
Maybe try to make something simple and easy but the goal is not really cooking, but instead allowing your wife to not have to cook. Grilled cheese sandwiches, canned soup, or even warmed up leftovers. The key here is doing something for your wife/family at meal time. Focus on helping them out and not so much with the quality of the meal.
I found my own interest in cooking when I wanted to recreate a dish I had at a restaurant. The dish was beef stroganoff. It was really good and I wanted to be able to have it any time I wanted. Now it was a puzzle. I found several recipes, noted where they were similar, where they were different, and made a new recipe that used the items that were always included and left out the items that were not. I made it. It was really good. I was really proud of it. Everyone else liked it too. A week or two later, I made it again. Each time I made it, it got slightly better and a little easier, and came together faster.
I now have about ten meals that I make all the time. I make them so often that I no longer need the recipe. Some of them have evolved a bit and can now be made with two or more variations. If I include the variations, it's probably closer to thirty different meals, but they all have the same basic structures.
Some of my favorites are really simple.
Baked California vegetables ([frozen] broccoli, cauliflower, carrots) with melted cheese is one of them.
Preheat the oven to 375°F. Line a sheet pan with parchment paper. Add enough of the vegetables to mostly cover the pan without overlapping. Pour 2-4 tablespoons of light vegetable oil over the vegetables and mix them with your hands until most of them have at least some oil on them. Spread the vegetables out on the tray. Sprinkle (to taste) with salt, freshly ground black pepper, and smoked paprika. Cover the vegetables with a layer of shredded sharp cheddar cheese. Place the tray in the oven on the middle rack for about 45 minutes or until the cheese is melted and has started to brown.
Start to finish, the prep time for this recipe is about the same as it takes to preheat the oven.