Boil and Prepare the Eggs: Place eggs in a pot, cover with cold water, and bring to a boil. Simmer 10–12 minutes, then cool in an ice bath, peel, and halve.
Make the Filling: Mash yolks until smooth. Add mayonnaise, mustards, lemon juice, Cajun seasoning, paprika, salt, and pepper. Spoon into egg whites.
Cook the Sausage and Shrimp: Heat butter or oil, sear sausage until crisp, then cook shrimp with Cajun spices and garlic powder until pink.
Make the Seafood Boil Sauce: Melt butter, sauté garlic, and stir in lemon juice, hot sauce, Old Bay, Cajun seasoning, smoked paprika, and cayenne until slightly thickened.
Assemble: Add sausage slice and shrimp to each egg half, drizzle with seafood boil sauce, and garnish with parsley and paprika.
Serve and Enjoy: Arrange your eggs on a platter and serve warm or at room temperature.
