For right now I would stick with a high quality dog food such as Blue Buffalo, Wellness something on that order. You can add dried milk to it and or canned salmon or mackerel. they need a good quality food without corn, wheat, gluten, or soy.......... all NOT good for dogs.
If you want to change to a RAW diet, do it later. Research it well or contact me once things have slowed down for you. But get them on a better dog food for now.
I do not recommend veggies as that is not going to put weight on her or add to her milk production. Instead of canned food give her a coupld raw chicken livers in her food to help. but do not get carried away.......... she is not used to this food and you do not want her body to act adverseley as that always sucks.
good luck
the lady with 4 dogs and 4 city chickens