The body isn't crazy about rapid change, lol.
I have to say that was quite a bit of food, for regular dinner time, let alone 9:30.
Try not to load during one meal so much
LHP is preaching to gain a lotta weight, but if your in season, or about to begin, do not overload your body, get some good nutrients and go to it.
Gaining weight would not be bad, nor should it be the sole focus at this point in the year. Depending on where you are, the heat and humidity will screw you up pretty badly. (say that because I'm about to go to my game, and it's about 80 with a ton of humidity)
Good luck, stay healthy, way to work Hoovedawg.