Not sure how adventurous the eaters are and whether or not you're looking for character dining.
BOMA dinner at AKL is great. Lots of very interesting foods, but standards for picky eaters too.
Trail's End at the campground is more traditional, southern home cooking kind of food. But we've found it very tasty both times we've been and it's kind of a nice break from a MK day. Take the boat over and back.
1900 Park Fare has buffet with Cinderella and the Stepmother/sisters for dinner. It's HYSTERICAL. And the food is quite good too. They'll really play up to your teenage boys. So that could be a lot of fun if they're into it.
'Ohana is served family style and the food was wonderful when we went in August for our first time. Can't wait to go back.
As PP mentioned Garden Grill is also served family style (means they bring plates to the table, not buffet, but all you can eat). Unlike PP, we did not at all enjoy the food and will never eat there again. Bland, bland, bland. And very few choices for food. Also, depends on if your teens are into meeting Mickey and Chip and Dale.