Unfortunately, I can't think of any places to get a good breakfast platter, but the Boardwalk Bakery makes terrific croissant breakfast sandwiches. Flaky crust, ham (or other meat) eggs and cheese...I wish I had one right now!
They also have other good pastries and yummy yogurt parfaits.
The Belle Vue Lounge has morning pastries, but I don't know exactly what that entails, as I have never been there...might be looking into on the foodie boards...
Kouzzina is limited to Oatmeal, pastries and fruit from what I've read.
If you have Park hopper option, it's a short walk to Epcot's international Gateway, and then you could go to Seasons in Future World (The Land). They serve more traditional breakfasts. Hope that helps!
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I forgot about the Captain's Grille at the Yacht Club. That's walking distance, too! There's a buffet and all the usual breakfast platters! And you don't have to go into a park!