As the wonderful Wendy says, if you book 'Chef's Domain' through the restaurant, and not through DFTW, it will not trigger the dreaded minimum spend, as it is not considered a 'catered event'. You will only have to worry about the minimum spend if your 'Escape' wedding is at the week-end, or you add said catered event (eg. a DP or non-restaurant reception). So, therefore, if your wedding is on a week day and you just have your 'Chef's Domain' reception, there will be no minimum. If your wedding is on a week-end, and/or you add a catered event then you trigger a minimum spend of $7,500.00 (I think - unless this has recently changed).
It is my understanding that in park photo shoots count towards your 'Escape' minimum, but I may be wrong, and somebody far more knowledgeable than me will know for sure!!
Although we were too big a party for the 'Chef's Domain', we had our VR reception at 'Citrico's', and they were brilliant!!! Contact the restaurant with your concerns about your fussy eaters, and I am sure they will do all they can to accommodate you!!!