Seafood boils are known for their flavorful seasoning blends. These can vary widely but often include ingredients like garlic, lemon, cajun spices, and butter. Some places offer a choice of spice levels, so you can adjust the heat to your liking. Boil Bags: Many seafood boil restaurants serve their seafood in plastic bags or buckets, which are filled with the seafood of your choice, the chosen seasonings, and sometimes additional items like corn on the cob and potatoes. It's a hands-on and messy dining experience.