Yeah, I have a tendency not to believe anything the pros say w/ regards to their training and diet, mainly b/c many of them won't admit to using roids, which is blattantly ridiculous.
As far as what I was eating to get to 7k ... it was a couple months ago, so I won't be able to break it down, but basically what I did was add 4-6 tbsps of PB to each meal, threw in a few tbsps of olive/flax oil in my shakes, and doubled up on the milk. I was drinking over a gallon at that point. The peanut butter was key tho, 2 tbsps = 190cals, so go figure. Also, I downed yogurt by the container, makes me sick to think about. And obviously my main meal portions were bigger, 6oz of chicken became 8-10 oz. Strictly ate every 2 hours, about 8 meals a day.
Overall tho, it wasn't a smart thing to do on my part, b/c I was only weighing 220, and that much food would be more suited for someone in the 250-275 range. Got super bloated, so I cut back down to 4,500/day.