Disney says
1/4 lb Plant-based Patty with Dairy-free Cheese, Lettuce, and House-made Sauce on an Allergy-friendly Bun, served with Cuties® Mandarin Oranges or French Fries.
Friendliest.app says
The Classic Impossible Cheeseburger is free of gluten/wheat, milk, fish and shellfish.

French fries are fried in a dedicated fryer to reduce cross-contamination.

This meal contains peanuts, tree nuts, eggs and soy.

Note: This meal can be made egg allergy-friendly and plant-based by ordering the standard bun (contains gluten/wheat), but it will no longer be gluten/wheat allergy-friendly.