I can't say I do these every trip but I try to. Some are no longer available and sometimes I find new things instead but:
Cobb Salad - HBD
Butterfinger Cupcake - Starring Rolls (what will I do now?)
Cobbler (of any flavor) - CHH or WL
A yummy seafood dish (halibut, snapper, grouper or perch at Jiko, Narcoosee's or FF). What can I say? I love me some fish but not salmon.
A yummy Filet Mignon at YS or FF (don't even eat red meat at home only in WDW or at Capital Grill)
Jalapeno Cheese pretzel (used to but alas no more)
Punch Line Punch - JSC (a new discovery but has to be with the spiced rim)
Pork Belly (another new discovery and again don't eat this at home only at WDW and it is amazing at FF!)
Spicy Watermelon Margarita (NEW and anywhere)
Bangers and Mash at R&C (the BEST bangers and it's tradition!)
A brat with chips in Germany (EPCOT)
Conjurita (NEW) at AbracadaBAR
Captain's Mai Tai (anywhere)
Too bad they don't have those cinnamon glazed pecans and almonds year round or those would also be on my list.
I know it's a lot but now I have to try to do most of the above EVERY trip and we do long trips! As you can see not a lot of sweet treats. For the most part I try to stay away from them as long as I have my occasional chocolate item and of course my cobbler.