Getting the most out of yourself as a runner might entail behavior that would not necessarily fall under the "healthy-habits" that many professionals recommend. There was a post on the homepage a few months back about Tyler Hamilton I believe. It was one of the cyclists who trained with Lance and also won the tour de france. I believe it was him. Anyways - I remember reading how he would finish a hard workout, take some seltzer water to induce satiety and then take ambien (sleep aid) to fall asleep before dinner time.
This is an extreme example but it makes your habits seem not so bizarre in comparison. Do you want to lose weight? It is simple when you think about it really. Create a calorie deficit. Maintain the deficit until you hit your desired weight. Then just eat slightly more than you have been eating to eliminate the deficit and your weight will stabilize.
If you increase or decrease training then your weight will increase or decrease accordingly (if you maintain the same diet). So if you bump up mileage in the future then realize it is okay to eat a bit more since you will be burning more calories.
Conversely, if you are tapering for an important race then you will need to reduce your food intake if you want your weight to stay the same. You will probably be hungry when this happens but, and I hesitate to put it in these terms since I don't want to come off as promoting an eating disorder, but it is okay to be (a little) hungry sometimes. You don't need to eat at every pang of hunger you feel.
Again, this is all assuming you want to maximize performance. As I said, it will lead you to adopt behaviors or habits many would say is "unhealthy" (like in the Tyler Hamilton case above). But, extreme fitness (whatever that may mean for someone's ability level) requires "extreme" (relative to the average joe) habits.
Coming back from a hard track workout and not splurging on food is hard. But so is running 10 repeat quarters at mile pace with little rest. It is just another part of being an athlete. Just another sacrifice that requires a disciplined mind.
I disagree with the "If the furnace is hot enough, anything will burn" mentality. Diet matters. Neglect it at your own detriment.