So, I did some comparisons for the food available for leveling monks at the Peak of Serenity. If you didn't see it on page 38, there is a vendor at Peak of Serenity near some tents that sells buff food for 1 silver a piece to leveling monks. The NPC's name is Master Chang, which is a female Pandaren. When you Zen Pilgrimage into the peak, turn right and go down the stairs, she is at the left tent.
If you are stocking up, don't buy or make anything below level 80. Everything from the vendor up to the level 80 food is better than what you can make. After level 80, the current Cataclysm food is much better. Keep in mind this is leveling as WW or BM.
Here's the level 70 comparison:
Vendor at Peak:
Tiger Brew of Fallen Blossoms
Cookable food (WotLK):
Mega Mammoth Meal
Now, if Agility to AP conversion is the same for a monk as it is for a rogue, 1 agi = 2 AP. So with the brew, you get 45 agi which converts to 90 AP. With the MMM, you get 80 AP. Yeah, you also get stamina, but is 40 stam really worth worrying about when monks have a few self heals when in combat? I think not.
For level 80-85 however, going with Skewered Eel might be better; Here's the comparsion:
Vendor at Peak:
Tiger Brew of Serenity
Cookable food (Cata):
Skewered Eel
With the brew, you get 60 agility, which converts to 120 AP. With Eel, you get 90 agility, which converts to 180 AP. If you are trying to maximize the buffs and benefits you have for the speed run, this is the food to have on hand before starting.