Hmmm... My suggestion for two adults is to take the water launch at the front of the MK over to the Grand Floridian and have lunch at the Grand Floridian Cafe. It's truly great food, in a wonderful setting. Far better than anything available within the park itself.
Second choice would be, remarkably, Liberty Tree Tavern. Yes, with characters. The food is so much better here, IMHO, than Crystal Palace or Tony's. Another option would be to check out the Plaza Restaurant -- I haven't eaten there myself recently, but I hear it is very good.
For dinner, you have more choices. Again, I feel your best option is to take a water launch to a resort for dinner: Artist Point at Wilderness Lodge is the best of the best, but you can also choose from California Grill at the Contemporary, and Narcoossee and Citricos at the Grand Floridian.