Since you're staying at DLH, I'll start by saying that one of my favorite places to eat there is Tangaroa Terrace (quick service). The seating outside is amazing, love the Hawaii vibe and relaxing atmosphere. Tangaroa is a bit unique since it's Hawaiian style, but we really like the burger and pu pu platter.
At GCH, I am also a big fan of Craftsman Grill (quick service) and Craftsman Bar (sit down by pool). They both have similar menus, so it depends on if you want table service vs quick service. I usually opt for the Grill and sit in the little outside area. You can hear DCA from the other side of the wall!
At DCA, my favorites are Cocina Cucamonga (quesabirria tacos are a must) for quick service, and Carthay Circle for table service. Carthay feels fancy in an old Hollywood way...and the bathrooms are incredible!

We usually do the lounge seating instead of the full restaurant since I'm more of a grazer so the small plates are perfect. Their cocktails are also very strong and tasty!
At DL, my favorites are Jolly Holiday for quick service and Blue Bayou for table service. As others have said, Blue Bayou is more about the ambiance. We check in a bit early, politely ask for a waterside table and let them know we are willing to wat...works every time! Sometimes I find their service to be rushed, but I suppose that's understandable since it's such a popular location.
I also supplement with many trips to Little Red Wagon at DL for corn dogs (the best in the park IMHO) and Earl of Sandwich in DtD for a holiday turkey sandwich (to die for, but sadly not gluten friendly). Speaking of which, my Mom, while not gluten intolerant watches her intake, and she never has too much trouble with most places at DLR. She loves the cobb salad at Flo's, but I think it's mainly for the ambiance (we sit outside and watch the cars go by!).
Hope you have a great trip!
