Nala is correct, none in MK.
When at AK we always eat at Restaurantasaurus. It's pretty good, more of a limited menu than Cosmic Rays, but the burger is basically the same. The also have a toppings bar.
DH loves his refills so we try and seek them out as well.
Oh and Epcot, you can't beat Sunshine Seasons. They have a good variety of foods.