Slow cooker seafood recipes are a smart answer for hectic weeknights, and this 5-ingredient langostino dish keeps things especially simple by starting with frozen cooked langostino tails and a handful of pantry staples. Langostino has a sweet, delicate flavor somewhere between lobster and shrimp, so it feels a little special without requiring much work. Because the seafood is already cooked, the key here is gently warming it in a flavorful buttery sauce rather than treating it like a long-braised meat dish.
Serve this over hot pasta, fluffy rice, creamy polenta, or thick slices of toasted bread to catch every bit of the sauce. A crisp green salad, steamed green beans, or roasted broccoli make easy vegetable sides, and if you want to lean into the seafood-house feel, add lemon wedges and a simple glass of chilled white wine or sparkling water with citrus.
5-Ingredient Slow Cooker Langostino
Servings: 4
Ingredients
1 pound frozen cooked langostino tails
1/2 cup unsalted butter, melted
4 cloves garlic, minced
1 packet dry Italian dressing seasoning mix (about 1 ounce)
2 tablespoons lemon juice
Directions
1. Lightly grease the slow cooker insert if desired, then add the frozen cooked langostino tails in an even layer.
2. In a small bowl, stir together the melted butter, minced garlic, Italian dressing seasoning, and lemon juice until well combined.
3. Pour the butter mixture over the langostino, cover, and cook on LOW for 1 to 1 1/2 hours, just until the langostino is heated through. Stir once halfway through if convenient, but avoid overcooking.
4. Once hot, gently toss the langostino in the sauce and serve immediately over pasta, rice, polenta, or toasted bread, spooning extra sauce over the top.
Variations & Tips
Add heat: Stir in a pinch of red pepper flakes with the sauce ingredients if you want a little warmth. Langostino is naturally sweet, so a bit of heat gives the dish nice balance.
Make it saucier: If you plan to serve this over pasta or rice, add 1/4 cup chicken broth or seafood stock to the slow cooker along with the butter mixture. That gives you more liquid for spooning over the finished dish.
Finish with herbs: A tablespoon of chopped parsley or chives added just before serving brightens the rich butter sauce and makes the dish look fresher.
Watch the timing: Since the langostino is already cooked, the slow cooker is only being used to thaw and warm it gently. Check at the 1-hour mark; if left too long, the texture can become firm instead of tender.
Try a creamier version: For a richer spin, stir a few spoonfuls of cream cheese or a splash of heavy cream into the hot sauce right before serving, then toss well until smooth.