No, I don’t cook for them specifically, but they get bits and bobs of healthy human food for treats - no meat though as we are all veggie. My last dog loved broccoli stalks, cauliflower, carrots, blueberries and strawberries, greek yoghurt, eggs, sardines and would do anything for asparagus or apple. I also used to make bone broth popsicles for him in the summer (I bought the bone broth from a raw food supplier). We fed him these as treats or used them in enrichment though. His main meals were a mid-range kibble. He lived to a very good age, so we must have been doing something right.
I found this book a really interesting read re food and health. While it does advocate a really healthy fresh diet, it also recognises that lots of people don’t have the time etc to make their dogs food and ensure proper balance and nutrition, so suggests things you can add to a kibble or wet food fed dog’s diet to improve their health and longevity.
I’m currently researching foods for my next pup and the amount of different options out there is truly mind boggling. Every time I think I’ve found the right one I read some less than ideal things about the manufacturer or one of the ingredients etc. I’ve used the All About Dog Food website, but am not convinced by their scoring mechanisms and have noticed they have out of date info for several of the brands I’m looking at. I’ve also looked at Pet Food Expert, which takes into account other things as well as ingredients and nutrition, such as ethics of the manufacturer and ecological considerations, but all I have done is confuse myself even more!
Knowing my luck, whichever one I decide to try my pup will probably refuse to eat it! 
Nutrition is so important for growing pups, I don’t think I would risk home cooking for a puppy.