Table Service:
Via Napoli--the pizza is huge and easily makes a meal for multiple people, especially when you add a salad or other appetizer for the table.
La Hacienda--The platters for 2 (seafood or chicken/beef/pork) and an appetizer like guacamole or queso fundido may be enough to feed all of you. Complimentary chips and salsa were served with the meal last time we were there, further stretching your dollars.
Sanaa--The bread service appetizer is a good value and one of my favorite dishes at WDW. The four of us are all big eaters, especially my 2 teenage boys. We get the bread service and sauces with a couple extra pieces of bread for a small charge and 2 entrees to share. It is plenty of food and so delicious.
Counter Service:
Flame Tree BBQ--The Pulled pork, Chicken, Ribs sampler is enormous and very tasty. I'm a Carolina Girl who knows her BBQ and this stuff is GOOD. It's more Kansas City style than Carolina but still great.
Tangierine Cafe--The Shawarma platter is also huge and shareable. This is my favorite CS and favorite dish at Disney World.
Many resort food courts---One breakfast Bounty Platter feeds all of us, but you should know we don't normally eat a big breakfast. One person will run to the food court while the others get ready for the day and we pick what we like off of the plate. I remember eggs, bacon, sausage, a biscuit, breakfast potatoes, and a Mickey waffle or french toast. It is pretty substantial, especially for $11.
Port Orleans French Quarter food court--the beignets are so yummy and sharable.