No, bigger meals are not the way to go about it. Have many smaller meals throughout the day instead. Lower how much you eat per meal and add in a protein bar, protein shake, or some heathy fruit between meals. Ideally you should be able to eat 5 or 6 meals a day. Because you're eating less per meal your body doesn't store the extra calories. For a lot of people the problem isn't junk food but rather huge quantities at every meal. I know, I know, I'm like a lot of other people and want to eat the buffet out of business, but you gotta stop when you're "satisfied" not stuffed.