Was it Riverbelle Terrace?
Another note - Breakfast in the Park is NOT Minnie's breakfast - FYI, that's a common misconception because of the names.
Meals - Goofy's Kitchen for the dinner is the most expensive meal, and that is the value of your voucher and what you have paid. If you use it anywhere else, you do not get change or credit back, you just tipped the program very very nicely.
I do not like
Disneyland's meal plans at all and wouldn't purchase one under any circumstances. If it were me in your shoes, I'd either be very careful planning things out and make advance reservations as well - or I'd ask to exchange them for Disney dollars or a Gift Card.