Wiring for island D/W and GFI and Garbage Disposer
The wiring should look something like this...


Grounding conductors not shown

Depending on where you live, the disposer receptacle may or may not have to be GFCI protected. The drawing shows GFCI protection, but it may not be required.

Also, if the line coming to the other receptacle is already GFCI protected, you don't need a GFCI receptacle there either.