There is a cartoon with a ginger boy who is a normal kid, but when a girl with blonde pigtails comes into his room they travel to another dimension. There are episodes with pistachio ice cream and giant vending machines. They are usually a good accompanied by two furry monsters.
I saw it on YTV or Teletoon in Canada. I believe it was at least a few seasons in length. I watched it in the mid 2000s. I know it is not Lloyd in Space or Chalkzone.