A bunch
Off the top of my head...
The citrus salad at 'Ohana with mandarin oranges
Niçoise salad at Be Our Guest- as a QS lunch!
The Mickey pasta mac and cheese they used to serve in multiple locations
The veggie lasagna they used to serve in the Land-before the remodel
The tuna salad they used to serve in the land (are you sensing a theme? This was similar to the BOG salad in that it was not canned tuna, but pink seared tuna served over a bed of greens)
The amazing desserts they used to have at Kona Cafe pre-DDP, plus the entrees they had back then, like the stir-fry noodles.
The buffet they used to serve at 1900 Park Fare about 10 years ago.
The quality of the buffet at Boma when it was new, like the spinach-quinoa salad.
Most of all, the Nestle Toll House cookies on Main Street!
I miss the smell of warm cookies every visit. When people talk about WDW going downhill, this always comes to mind. Back then WDW coffee was lousy, so I can see why they added Starbucks' coffee, but losing both the Toll House Cookies AND the chocolate chunk cookies/ice cream sandwiches they used to serve at Sleep Hollow is a big loss.