Neither Cesars nor Iams is a high quality food. A good food is really essential for a dog that size; she must get all the nutrients she needs in a small amount of food, because that is all she can eat is a small amount!

Some high quality foods include: Solid Gold, Taste of the Wild (that is what I feed), Wellness Core, and Canidae. Halo canned would be a great wet food to give once a day.

I think that small size, you feed either 2 or 3 times daily. You shouldn't fee feed her. Rather, put down her bowl with the right amount of food, wait 10 minutes and then pick it up. No food or snacks till the next feeding. She will NOT starve herself, lol.

Good luck!