Bayou Butter Sea Scallops Crockpot Dinner

This slow cooker seafood dinner brings the bold flavors of a Louisiana coastal boil to your weeknight table with almost no effort. Sea scallops and jumbo shrimp simmer gently in a spiced Cajun garlic-paprika butter sauce with sweet bell peppers, Vidalia onions, and celery.

The result is tender, buttery seafood with a gentle kick, perfect spooned over steamed rice. Just layer the ingredients in the Crockpot, pour over the seasoned butter, and let it work its magic while you go about your day.

This recipe turns a handful of simple ingredients into a deeply satisfying dinner that tastes like it came from a Bayou kitchen. The slow cooker does all the work: the seafood cooks gently in the spiced butter, absorbing the Cajun seasonings while the peppers and onions soften into a sweet, savory base.

The sauce becomes a rich, glossy bath that begs to be sopped up with crusty bread or spooned over rice. It's a fuss-free way to cook seafood that comes out tender every time, with minimal prep and maximum flavor.

Ingredients

Why this recipe works

The slow cooker provides a low, steady heat that cooks scallops and shrimp gently, preventing the rubbery texture that often comes from high-heat cooking. The butter and lemon juice create a sauce that keeps the seafood moist and adds a bright, tangy note.

Because the ingredients are layered without stirring, the seafood steams in its own juices and the seasoned butter, resulting in a tender, succulent bite.

The Cajun butter does double duty as both a cooking medium and a flavoring agent. As it melts and bubbles, it carries the garlic, paprika, and spices throughout the dish, coating every piece of seafood and vegetable.

The sweet bell peppers and onions provide a natural counterpoint to the spicy butter, while the celery adds a subtle freshness. The result is a balanced, aromatic sauce that tastes like it simmered for hours, even though it comes together in minutes.

Notes and substitutions

Dry-pack sea scallops are ideal for this recipe because they don't have added water or preservatives, so they sear and cook more evenly. If you can only find wet-packed scallops, pat them very dry before adding to the slow cooker to avoid excess liquid. Jumbo shrimp should be peeled and deveined; you can leave the tails on for presentation or remove them for easier eating.

The spiced Cajun butter can be homemade or store-bought. If making your own, melt unsalted butter and stir in Cajun seasoning, minced garlic, and a pinch of paprika. For a milder version, reduce the amount of Cajun seasoning. The recipe is forgiving: feel free to adjust the heat level to your liking. Serve over steamed jasmine rice, or with crusty bread for dipping into the sauce.

• dry-pack sea scallops: use an equal weight of thawed frozen sea scallops; pat them thoroughly dry before adding.
• jumbo shrimp: substitute an equal weight of large peeled and deveined shrimp; adjust cooking time if smaller.
• sweet Vidalia onion: any sweet onion variety, such as Walla Walla or Maui, works well.
• spiced Cajun butter: melt 1/2 cup unsalted butter and stir in 1 teaspoon Cajun seasoning and 1 teaspoon minced garlic.

Equipment

• 6-quart slow cooker
• slotted spoon
• cutting board
• chef's knife
• measuring cups and spoons
• small saucepan