Dogs on raw usually do inhale their food, its because it tastes so good. There is no such thing as a full dog in my house
If she is putting on weight then it means she is consuming more calories than she is burning off. So you have two options, either you reduce the amount of food or you increase the amount of excersise.
Feeding guidelines are just that, guidelines. It also depends on energy levels, how much excersise they get and how fast or slow their metabolism is. Personally, I take no notice of feeding guidelines and always feed to condition.
Don't worry that if you decrease her food she won't be getting enough, if she is getting chubby then she is getting more than she needs