I'm typically not a buffet person as a Celiac, but have been to Wicked Spoon twice now (once a few days ago and once about two years ago) and haven't had any issues either time. Both times I alerted the hostess and our server that I'd like a walkthrough with the chef of GF items and he arrived at our table within 5 minutes of being seated. About 1/3 - 1/2 of the entire buffet is GF and they do seem to do a good job of separating the GF items from gluten items to avoid cross-contamination issues. (Most items are on small plates or in small bowls/containers to help avoid cross-contamination, and for food items where a serving spoon/tongs are involved, the food items are spaced out fairly well so it's clear which serving utensil to use.)
The chef said they have a dedicated fryer and workspace so things like the chips and guac and huevos rancheros were safe. The omelettes, most egg items, most of the carved meat section, smoked salmon, some potato items, various salads and fruit-based items, some of the hot pot/curry items, and a few desserts were all GF. I didn't try either of these (so full!) but the chef also said the Gyro meat is safe if it's served on a fried tortilla, and he'd be happy to make me GF french toast in the back in the GF area. The coffee is really strong and the service is outstanding.
— Gluten-free items are marked on the main menu
— Some
— Good