Preheat oven to 400 F. Generously butter two 9-inch cake pans. In blender, process eggs gently until light in color. Add remaining ingredients; process until smooth & pour into pans. Bake 20 minutes; reduce heat to 350 F. & bake 10 minutes more. Slide onto warm plates. Prepare banana/orange sauce WHILE pancakes are baking.
Banana/Orange Sauce
In a skillet, combine butter, sugar, orange juice & zest; bring to a boil. Peel bananas & slice; add to orange sauce. Stir to coat. Remove from heat. Pour banana/orange sauce over baked pancakes & serve.