Best Keto Garlic Shrimp Au Gratin

Posted on July 18, 2025 · [Elisa]

Keto Garlic Shrimp Au Gratin

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If you’re looking for a decadent yet low-carb dinner that feels restaurant-worthy, this keto garlic shrimp au gratin recipe delivers big on flavor and presentation. Succulent shrimp are seared to perfection, then bathed in a creamy, garlicky cheese sauce, topped with a crunchy parmesan and pork rind crust, and baked until golden.

Perfect for a dinner party, romantic evening, or just when you’re craving something comforting and elegant, this dish is keto-friendly without sacrificing indulgence. If you love rich, satisfying keto meals, you may also enjoy our creamy mushroom asparagus chicken penne or low-carb Tuscan chicken.

Why You’ll Love This Keto Garlic Shrimp Au Gratin Recipe

This recipe proves that keto dinners don’t have to be boring. It’s creamy, cheesy, garlicky, and full of texture thanks to the crunchy topping. Plus, it comes together in under an hour and is naturally low in carbs but high in flavor.

If you’re following a low-carb lifestyle, be sure to also try our creamy rotel pasta and creamy mushroom chicken for even more inspiration.

Who Will Love This Keto Garlic Shrimp Au Gratin?

This keto garlic shrimp au gratin recipe is perfect for anyone following a ketogenic or low-carb diet who wants a hearty and impressive meal. It’s also ideal for seafood lovers who enjoy rich, comforting dishes.

Ingredients You’ll Need for Keto Garlic Shrimp Au Gratin

  • Large shrimp, peeled, deveined, tails removed
  • Olive oil
  • Salt and pepper, to taste
  • Butter
  • Onion, chopped
  • Minced garlic
  • Basil
  • Pinch of nutmeg
  • Heavy whipping cream
  • Parmesan cheese, grated
  • Shredded Monterey Jack cheese
  • Crushed pork rind crumbs

You can pick up extra parmesan and cream to try our cheddar cheese buns as a side!

Kitchen Tools You’ll Need

  • Oven preheated to 375°F
  • Skillet
  • Saucepan
  • Mixing bowls
  • 9×13” or similar baking dish
  • Wooden spoon or spatula

Step-by-Step Guide: How to Make Keto Garlic Shrimp Au Gratin

Step 1: Preheat and Prep

Preheat your oven to 375°F. Grease your baking dish lightly with olive oil or butter.

Step 2: Sear the Shrimp

Heat olive oil in a skillet over medium-high heat. Season the shrimp with salt and pepper, then sear for 1–2 minutes per side until just cooked through. Transfer shrimp to the greased baking dish.

Step 3: Make the Cream Sauce

In a saucepan, melt butter over medium heat. Add chopped onion and sauté until softened, about 3–4 minutes. Stir in minced garlic, basil, and a pinch of nutmeg. Sauté for another 30 seconds until fragrant.

Step 4: Add Cream and Cheese

Pour in the heavy whipping cream and bring to a simmer, stirring often, until slightly thickened. Stir in ½ cup parmesan and a handful of shredded Monterey Jack. Season with salt and pepper to taste. Pour this sauce evenly over the shrimp in the baking dish.

Step 5: Make the Topping

In a bowl, combine remaining parmesan cheese with crushed pork rind crumbs. Sprinkle this mixture evenly over the shrimp and sauce.

Step 6: Bake

Bake for 25 minutes, or until the top is golden brown and bubbly. Garnish with fresh herbs if desired and serve hot.

For another rich and cozy dinner, don’t miss our chicken in parmesan cream sauce.

Expert Tips for Perfect Keto Garlic Shrimp Au Gratin

  • Don’t overcook the shrimp in the skillet — they’ll finish cooking in the oven.
  • Use freshly grated cheese for the best melting and flavor.
  • If you prefer an even crunchier topping, broil the dish for the last 1–2 minutes.

Common Mistakes to Avoid

  • Overcooking shrimp, which can make them rubbery.
  • Using pre-shredded cheese, which may have anti-caking agents that prevent smooth melting.
  • Skipping the salt and pepper — seasoning at each step is key to great flavor.

Serving and Presentation Ideas

Serve directly from the baking dish for a rustic presentation, or plate with a sprinkle of fresh basil or parsley for color. Pair with a crisp green salad or roasted asparagus for a complete low-carb meal.

Recipe Variations and Creative Swaps

  • Add sautéed spinach or mushrooms to the cream sauce for more veggies.
  • Use a mix of cheeses like Gruyère and cheddar for a deeper flavor.
  • Substitute crushed almonds or almond flour for the pork rind topping if preferred.

How to Store and Reheat

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven at 325°F until warmed through.

Best Food and Drink Pairings

Serve alongside a crisp cucumber salad or our pickle juice ranch cucumber salad for a refreshing contrast.

Frequently Asked Questions

Can I use frozen shrimp?
Yes — just thaw completely and pat dry before searing.

Can I make this ahead of time?
You can assemble the dish (without baking) a few hours ahead and store it covered in the fridge. Bake just before serving.

What can I use instead of pork rinds?
Use finely ground almonds or crushed keto crackers as a topping alternative.


Final Thoughts: Bake, Share & Subscribe!

This keto garlic shrimp au gratin recipe is a creamy, cheesy, and satisfying dinner that’s perfect for low-carb lifestyles and anyone who loves seafood. It’s rich, flavorful, and guaranteed to impress.

If you enjoyed this recipe, don’t forget to share it with your friends and family — and subscribe to our blog for even more keto-friendly and indulgent recipes. If you’re looking for another cheesy dinner idea, check out our creamy rotel pasta next!

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Irresistible Keto Garlic Shrimp Au Gratin Recipe You’ll Make Again


  • Author: Elisa
  • Total Time: 40 minutes
  • Yield: 4 servings

Description

This keto garlic shrimp au gratin is creamy, cheesy, garlicky, and topped with a crunchy parmesan-pork rind crust. A decadent yet low-carb seafood dinner perfect for impressing your guests or treating yourself on a weeknight.


Ingredients

  • Large shrimp, peeled, deveined, tails removed
  • Olive oil
  • Salt and pepper, to taste
  • Butter
  • Onion, chopped
  • Minced garlic
  • Basil
  • Pinch of nutmeg
  • Heavy whipping cream
  • Parmesan cheese, grated
  • Shredded Monterey Jack cheese
  • Crushed pork rind crumbs

Instructions

  1. Preheat & prep: Preheat oven to 375°F. Grease a 9×13” baking dish with olive oil or butter.
  2. Sear shrimp: Heat olive oil in a skillet over medium-high. Season shrimp with salt and pepper. Sear for 1–2 minutes per side until just cooked through. Transfer to baking dish.
  3. Make sauce: In a saucepan, melt butter. Sauté onion until soft. Stir in garlic, basil, and nutmeg. Add cream and simmer until thickened. Stir in ½ cup parmesan and a handful of Monterey Jack. Season with salt & pepper. Pour over shrimp.
  4. Add topping: Mix remaining parmesan with pork rind crumbs. Sprinkle over shrimp and sauce.
  5. Bake: Bake 25 minutes, until golden and bubbly. Garnish with herbs and serve hot.

Notes

  • Don’t overcook shrimp in skillet — they finish in the oven.
  • Use freshly grated cheese for best flavor and melting.
  • For a crunchier topping, broil for last 1–2 minutes.
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Category: Dinner
  • Method: Baking
  • Cuisine: Keto

Nutrition

  • Serving Size: 1 portion
  • Calories: 420
  • Sugar: 2g
  • Sodium: 900mg
  • Fat: 30g
  • Saturated Fat: 15g
  • Unsaturated Fat: 12g
  • Trans Fat: 0g
  • Carbohydrates: 4g
  • Fiber: 1g
  • Protein: 34g
  • Cholesterol: 220mg

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