Welcome back! 
Eating your way through the city is not gross when it includes strawberries and (ice) cream on waffles. I don't know about the mayo on the fries, though - I wouldn't do that.

And if you're curious - in Bulgarian "Belgian waffles" are "гофрети" (sg. гофрета). And if you see someone selling "Белгийски вафли", this means that whoever decided to start this little business didn't know we were eating these long before he thought about it :P