Plenty of suggestions, but first we have to walk through some basic questions/ideas/comments.
1.) Must/Can the meal be inside a Park, Resort, Disney Springs?
2.) Most Disney-run establishments, that are not buffets, have been moving to more limited menus where 'wide variety of food' becomes the problem.
3.) The most basic answer for 'normal food' would be for your group to focus on 'steak' kinda' places like Yachtsman, Shula's, Boathouse, etc.
While my family has yet to go, Boathouse seems like the best choice simply because the menu is the most extensive.
A case be made for fireworks places like CA Grill & Narcoossee's.
A case can be made for non-Disney places like Capa (Four Season), Shula's (Dolphin), and Bull & Bear (Waldorff).
And these are all high-end places (Signature's), but you can also go with a dining package for Fantasmic! or have an add-on like the Dessert Parties.
I could go on and on.....but you've offered very few parameters.