Agreed, this specific meal takes some planning transportation wise. IMHO Uber is probably the best way to go if you don't have a car (and even if you do they don't guarantee that you can park in their lot at the BW). We were lucky that there was plenty of parking but the security guard at the gate was pretty clueless and didn't even know what the Bon Voyage Breakfast was! (wow-either just covering for the day or more training is need

...an ADR does not guarantee parking.
Otherwise the only other option is to connect buses or a boat at one of the parks (or even walk from HS but be prepared to arrive sweaty LOL) and then go to the BW from there but you need to allow AT LEAST an hr for that as transportation can be a challenging at times.