Hi, Nadine!
There are so many great dining options! You have some great ones already planned that you should enjoy.
HERE is a complete list of character dining locations. Some of my family's favorites include Chef Mickey's at the Contemporary (Mickey and pals) and The Garden Grill Restaurant in Epcot (Chip and Dale.)
Another great option is the Whispering Canyon Cafe at the Wilderness Lodge. You can order off a menu, but you have the option of an individual meal or All-you-can-eat skillets. There are no characters, but this restaurant is a lot of fun!
A nice breakfast location is Cape May Cafe where they serve a breakfast buffet with your host, Goofy! This is a good option if you plan to spend the day in Epcot. You can enjoy a huge buffet breakfast at the Beach Club then take the quick walk over to Epcot, or even hop on a boat over to Hollywood Studios.
Wherever you decide, make your Advance Dining Reservations
online or call (407)WDW-DINE. If you find everything to be booked, try again the next morning for any cancellations from the prior day. Good luck and have a wonderful WDW vacation!