It is good that you have taken this dedication to your dog, they need to be fed as they should, cats are strictly carnivores, so I do not understand how some people pretend to give them only plants as if they were vegetarians, they are crazy, they do not digest some of those foods.

Now a detail and if you have doubts consult the internet and finally with the vet, garlic must be handled with care because it contains allicin, so read about it, I saw that you have to research and ask the vet, for example cats can not be given garlic or onion, I am not sure about the other plants you mention, it is nice that you take care of your dog like this, I wish all dogs were that lucky, you see so many things that make you sad, I congratulate you for taking care of him so much and share your experience with us, a big hug for you and Chaser.