Personally, I think it is. I can wolf down a lot of food if I tear into it like we used to in basic training when the drills would only give you a few seconds to eat a whole meal. But I've never chewed my food really good my whole life. I can swallow big chunks of meat after I've only chewed it three or four times.
Do you have to eat the whole meal or just the steak? The carbs (from the potato) are tricky. Carbs will give you a full feeling very quickly (as compared to protein) because carbs are sugar. It takes the body longer to get into that protein. If you have to eat the potato too, I'd save that and the roll for next to last (salad last because it is easy to eat even if you're full- there's nothing too it really but roughage).