I’m very curious as to what you are cooking for your dogs, because I can’t think of an ingredient that should not be fed raw
Other ingredients could be eaten raw but they’re either difficult to eat (asparagus) or can cause gastrointestinal upset/gas (broccoli).
I do feed a lot of raw or already prepared foods as well: yogurt, cottage cheese, pumpkin, carrots, applesauce, bananas, peanut butter, blueberries, watermelon, etc. The ingredients all need to balance out for the day to make sure they get the right nutrients and to make sure the fats/protein/carbs are with appropriate ranges so how much dog food cooking I do varies each week. Sometimes it’s more and sometimes it’s less. I’m always cooking at least a meat and pasta/rice though.