You guys are gonna blast me for this but.....
That can be done consistently. You train yourself to eat that much. On my precontest diet as my bodyfat lowers and my hunger raises, i usually eat a bag of uncle bens rice (orange bag, the one that takes 90 seconds to cook, roughly 80g carbs) for my post workout meal and also a meal in the morning....a bag is 2 cups. And im STILL hungry when i finnish it. Clean foods dont have a ton of calories and leave you hungry. When i reach 6 weeks out, 1lb of meat and 3 cups of rice for me would probably be a joke IF i could allow that (which i cant that close to a show). He is almost 80lbs heavier than me. I dont doubt it for a single second.
Go to the grocery store and look for the bags i am talking about. Little orange bag with different flavors (but you can also get JUST brown rice). It cooks in 90 seconds in microwave just tear open the bag.....once you see what i mean, you will have a COMPLETELY different opinion on this...they are NOT that big.
By the way....when im not dieting and we order chinese, i put away the ENTIRE quart of white rice mixed with some beef fried rice and some soy....plus a pint of beef n broccoli and a quart of sweet and sour chicken (no sauce, hate the sauce). Cmon guys....big eaters exist.....im KNOWN for my ability to put away food by anyone who knows me....id take on Trey in a buffet ANY DAY OF THE WEEK