Come on, beer (Pils, if you have any doubts, Krefelder tastes awful) with coke is where it's at! Or banana juice but good luck finding that stuff.
I don't like Pepsi as much, it has a weird taste, but it's still preferrable to any third party cola out there. Cola is pretty much the only popular "food" you can't get a good substitute for at Aldi.
But then again, remember the first law of fast-food: When you come to another country, everything you know is wrong.