Final answer:
The three featured steamer buckets on the menu are the Wagon Unit Center, Steaming Cauldron, and Flower Trick, offering a variety of steamed culinary delights.
Step-by-step explanation:
The three steamer buckets featured on the menu, based on the information provided, are the Wagon Unit Center, Steaming Cauldron, and Flower Trick. Each of these unique buckets likely presents a distinctive dining experience characterized by the steaming method of cooking. Steamer buckets are popular for their ability to cook food evenly while retaining moisture, making meals like vegetables, seafood, and various meats both healthful and flavorful.