Ah... yes... I know this well.
Here is how it went for me over the summer:
"I just rode 40/50/60 miles in 100 degree heat! I can CHOW DOWN! Hhhuuummm... will it be Taco Bell or Taco Bueno today? Or pizza! I can eat pizza!"
Yea, uuuummm... that lead to me gaining 10 pounds.
Unfortunately, just because we ride a bike, doesn't mean we get to eat all we want.
Good luck on getting the food in check and figuring out how to ride and keep the belly away! I have done pretty good with couting calories... BUT, I am also not in the height of my riding season either.
Take care... and keep riding!
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"