It's really hard to know what a normal amount of food to eat is, but im betting a chicken burger isn't it! I do the same thing. I have like a yogurt for breakfast then wonder why I'm starving at dinner. That yogurt wasn't enough! Frontload! If you can move your food to the beginning of the day, you might be more likely to eat healthy and a lot less likely to binge as the day goes on. Big breakfast is good. It's getting there that's hard.