[Jazy's mom]

It sounds like you are feeding him the same amount every day, but instead of you spliting the food into two seperate meals, Ozzy is doing this himself. I don't think this is a problem since you only have one dog. I did the same thing with my Jasmine, because she too was very skinny when I rescued her and needed to gain weight.

As others have stated, there are benifits to scheduled feeding, but from what you have described about Ozzy's eating habits, I would not worry about free feeding him too much. If it works for you and Ozzy that is all that matters.