The aroma of sizzling garlic and cheese fills the air as I pull this dish from the oven, a true delight for any seafood lover. Today, I’m excited to share my Keto Garlic Shrimp Au Gratin, a low-carb marvel that transforms simple shrimp into a creamy, cheesy masterpiece with only 3 net carbs per serving. This dish isn’t just a keto-friendly option; it’s also perfect for impressing your family or guests with minimal effort. You’ll love how quickly it comes together, making it ideal for weeknight dinners when you’re short on time yet crave that soul-satisfying comfort food. Curious about how a few basic ingredients can create such rich flavors? Let’s dive into the recipe!

Why is Keto Garlic Shrimp Au Gratin a Must-Try?

Creamy, Cheesy Indulgence: This dish combines a luscious cheese sauce with the sweetness of shrimp, making every bite utterly satisfying.

Quick Preparation: With just a few simple steps, you can have a gourmet meal on your table in no time—perfect for busy weeknights!

Low-Carb Delight: At only 3 net carbs per serving, it aligns flawlessly with keto diets without sacrificing flavor.

Versatile & Customizable: Feel free to experiment by substituting other seafood like crab or adding veggies like spinach for a nutritional boost!

Crowd-Pleasing Flavor: Impress your family or guests with a rich and savory dish that delivers on taste while being good for you.

For more delicious options, check out my Garlic Parmesan Chicken for another irresistible meal!

Keto Garlic Shrimp Au Gratin Ingredients

For the Creamy Sauce
Large Shrimp – Use fresh shrimp for the best flavor and texture in this keto shrimp au gratin.
Olive Oil – Adds fat for cooking and enhances flavor; can substitute with butter for richness.
Butter – Used for sautéing and adds a decadent richness to the sauce; ghee can be a dairy-free alternative.
Onion – Provides sweetness and aroma to the dish; shallots make a suitable substitute if needed.
Garlic – Key flavoring agent; opting for fresh minced garlic significantly boosts flavor compared to garlic powder.
Fresh Basil – Adds a fragrant herbal note; dried basil can be substituted but may alter the flavor slightly.
Ground Nutmeg – Enhances the overall flavor profile; it can be omitted if desired.
Heavy Whipping Cream – Creates a thick, indulgently creamy sauce; coconut cream is a great dairy-free option.

For the Cheesy Topping
Parmesan Cheese – Adds sharpness and creaminess; pecorino Romano is a wonderful substitute if you prefer.
Monterey Jack Cheese – Provides melting creaminess; cheddar also works well as a substitute.

For the Crunchy Topping
Crushed Pork Rind Crumbs – Acts as a low-carb topping instead of breadcrumbs, providing a delightful crunch.

Step‑by‑Step Instructions for Keto Garlic Shrimp Au Gratin

Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C). This ensures an even cooking temperature for the Keto Garlic Shrimp Au Gratin. While it heats, prepare a baking dish by lightly greasing it with olive oil or butter, so the creamy shrimp will easily release after baking.

Step 2: Sear the Shrimp
In a skillet, heat 2 tablespoons of olive oil over medium-high heat. Season the large shrimp with salt and pepper, then add them to the skillet. Sear the shrimp for about 1-2 minutes on each side until they turn pink and opaque. Once done, transfer the shrimp to a plate and set aside to keep warm.

Step 3: Sauté the Aromatics
Using the same skillet, lower the heat and add 2 tablespoons of butter. Allow it to melt before adding the chopped onion. Sauté the onion for 3-4 minutes or until soft and translucent. Then, add the minced garlic, fresh basil, and ground nutmeg, stirring for another 30 seconds until fragrant and vibrant.

Step 4: Make the Cream Sauce
Pour in 1 cup of heavy whipping cream, allowing it to simmer gently for 3-4 minutes. Stir continuously to combine the flavors. Then, gradually add in half the Parmesan cheese and all of the Monterey Jack cheese, mixing until smooth and creamy. Taste and adjust with more salt and pepper if needed.

Step 5: Assemble the Dish
Spread the seared shrimp evenly across the bottom of your prepared baking dish. Pour the luscious cream sauce over the shrimp, ensuring they’re fully covered. For a delightful crunch, combine the remaining Parmesan cheese with crushed pork rind crumbs, then sprinkle this mixture generously on top of the sauce.

Step 6: Bake to Perfection
Place the assembled Keto Garlic Shrimp Au Gratin in the preheated oven and bake for 25 minutes. Keep an eye on the dish; it’s ready when the topping is golden brown and the sauce is bubbling delightfully around the edges. Remove from the oven and let it rest briefly before serving.

Keto Garlic Shrimp Au Gratin Variations

Feel free to get creative with your Keto Garlic Shrimp Au Gratin, transforming it into your personal masterpiece that excites all the senses.

  • Seafood Swap: Replace shrimp with scallops or crab for a different seafood experience. Each option brings its unique flavor to the dish, creating a new favorite!
  • Dairy-Free Delight: Use coconut cream instead of heavy whipping cream for a delightful dairy-free twist. It still achieves that rich creaminess without compromising on taste.
  • Veggie Boost: Stir in sautéed spinach or mushrooms for added nutrition and texture. These veggies not only enhance flavor but also add vibrant color to your dish.
  • Spicy Kick: For those who love heat, sprinkle in red pepper flakes or jalapeños. A little kick can make this creamy dish truly exciting and dynamic in flavor.
  • Herb Infusion: Experiment with herbs by adding fresh thyme or dill instead of basil. This will infuse the dish with a lovely aromatic landscape, adding depth to every bite.
  • Nutty Crunch: Swap crushed pork rinds with almond flour for a nutty topping. This will lend a different texture while keeping it low-carb and delicious.
  • Cheese Variety: Mix up your cheeses by adding mozzarella or gouda for an extra melty and flavorful topping. Each cheese brings its own nuances of flavor that can change the dish entirely.
  • Garlic Lovers: Finish off with a sprinkle of garlic powder in the cream sauce for an even bolder garlic flavor. It’s truly a garlic lover’s dream come true!

As you enjoy your cooking adventure, don’t forget to check out my Honey Garlic Chicken or try out my crispy Garlic Parmesan Chicken for more exciting meal options!

How to Store and Freeze Keto Garlic Shrimp Au Gratin

Fridge: Store leftovers in an airtight container for up to 3 days. Make sure to cool the dish completely before sealing to preserve freshness.

Freezer: If you want to freeze the Keto Garlic Shrimp Au Gratin, portion it into freezer-safe containers, and it can last for up to 2 months.

Reheating: When ready to enjoy, thaw overnight in the fridge, then reheat gently on the stovetop or in the microwave until warmed through. Stir to maintain creaminess.

Covering: Always wrap or cover tightly to prevent freezer burn, which may affect the creamy texture and flavor.

Make Ahead Options

These Keto Garlic Shrimp Au Gratin are ideal for meal prep enthusiasts! You can prepare the creamy sauce and sear the shrimp up to 24 hours in advance. Simply cook the sauce, allowing it to cool completely before refrigerating it in an airtight container, which helps maintain that rich, creamy texture. When ready to serve, lay the shrimp in the prepared baking dish, pour the chilled sauce over, and sprinkle the topping mixture. Bake as directed for a fabulous meal that delivers restaurant-quality taste with minimal effort. This way, you can enjoy a delightful homemade dish on busy weeknights, saving both time and stress in the kitchen!

What to Serve with Keto Garlic Shrimp Au Gratin

Enhance your dining experience by pairing this creamy, cheesy seafood delight with complementary flavors and textures.

  • Crispy Green Salad: A refreshing mix of greens with a light vinaigrette complements the rich shrimp dish nicely. The crunch provides a great contrast to the creaminess.
  • Garlic Butter Asparagus: Tender asparagus sautéed in garlic butter offers a vibrant and healthy side that enhances the dish’s flavors. The earthy taste pairs wonderfully with the rich cheese sauce.
  • Zucchini Noodles: Light and low-carb, zucchini noodles soak up any leftover sauce beautifully. They add a fresh twist, making your meal feel lighter.
  • Roasted Cauliflower Steaks: These provide a hearty, smoky flavor that pairs effortlessly with the cheesy shrimp, and their texture adds great variety to your plate.
  • Herb-Infused Quinoa: A spoonful of fluffy quinoa spiked with fresh herbs brings a nutty flavor, perfectly balancing the creaminess of your main dish.
  • Chilled White Wine: A crisp Sauvignon Blanc or a light Pinot Grigio complements the seafood’s flavors beautifully, making every bite more indulgent and satisfying.
  • Coconut Milk Rice Pudding: For dessert, this creamy treat topped with fresh fruits offers a sweet ending that matches the richness of your meal without being too heavy.

Expert Tips for Keto Garlic Shrimp Au Gratin

  • Fresh Ingredients: Always use fresh garlic and basil for a vibrant flavor. Dried herbs may work, but fresh will elevate your dish.
  • Avoid Overcooking: Sear shrimp just until pink; overcooking will lead to rubbery texture and a less enjoyable meal.
  • Creamy Consistency: If your sauce separates when reheating leftovers, gently stir to reincorporate the creaminess for a delightful texture.
  • Customize Your Dish: Feel free to swap out shrimp for scallops or crab, or add sautéed vegetables like spinach for extra nutrition.
  • Storage Solution: Keep leftovers in an airtight container in the fridge for up to three days to maintain freshness and flavor.

Keto Garlic Shrimp Au Gratin Recipe FAQs

What kind of shrimp should I use for Keto Garlic Shrimp Au Gratin?
Absolutely! Always opt for large, fresh shrimp for this dish; they provide the best flavor and texture. Look for shrimp that are firm and have a subtle sea scent. Avoid shrimp with dark spots or a strong fishy odor as these indicate age or spoilage.

How should I store leftover Keto Garlic Shrimp Au Gratin?
For best results, store your leftovers in an airtight container in the refrigerator for up to 3 days. Make sure the dish has cooled completely before sealing it to maintain its creamy texture. When you’re ready to enjoy it, gently reheat it on the stovetop or in the microwave, stirring to keep the sauce smooth.

Can I freeze Keto Garlic Shrimp Au Gratin?
Yes! You can freeze this delicious dish for long-lasting enjoyment. Portion the Keto Garlic Shrimp Au Gratin into freezer-safe containers, ensuring it is tightly sealed to avoid freezer burn. This way, it can stay fresh for up to 2 months. When ready to enjoy, thaw it overnight in the fridge, and reheat gently until warm, stirring to blend the creamy sauce back together.

What can I do if my cream sauce separates when reheating?
Don’t worry! If you notice that the sauce has separated, it’s an easy fix. Simply stir the mixture gently on low heat, and it should come together beautifully again. If it seems too thick, add a splash of cream or water to help bring the consistency back to its luscious state.

Is this Keto Garlic Shrimp Au Gratin safe for my allergies?
It’s always important to be cautious with allergies. This recipe contains dairy, specifically heavy cream and cheese, which may not be suitable for those with lactose intolerance or dairy allergies. Alternatively, you can use coconut cream for a dairy-free version. Be sure to double-check all ingredients, especially if you’re cooking for others with food sensitivities.

Can I customize the ingredients in this dish?
Absolutely! The beauty of this Keto Garlic Shrimp Au Gratin lies in its versatility. You can swap out the shrimp for other seafood like scallops or crab and add sautéed veggies like spinach or mushrooms for added nutrition and flavor. Feel free to experiment with different cheeses, too, if you prefer something a bit different.

Keto Garlic Shrimp Au Gratin

Keto Garlic Shrimp Au Gratin: Creamy Cheesy Bliss Under 3 Net Carbs

Keto Garlic Shrimp Au Gratin is a creamy, cheesy delight with only 3 net carbs per serving, perfect for seafood lovers.
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 4 servings
Course: Dinner
Cuisine: Keto
Calories: 320

Ingredients
  

For the Creamy Sauce
  • 1 pound Large Shrimp Use fresh shrimp for the best flavor and texture.
  • 2 tablespoons Olive Oil Can substitute with butter for richness.
  • 2 tablespoons Butter Ghee can be a dairy-free alternative.
  • 1 medium Onion Shallots make a suitable substitute.
  • 3 cloves Garlic Fresh minced garlic boosts flavor.
  • 1 tablespoon Fresh Basil Dried basil can be substituted.
  • 1/4 teaspoon Ground Nutmeg Can be omitted if desired.
  • 1 cup Heavy Whipping Cream Coconut cream is a great dairy-free option.
For the Cheesy Topping
  • 1/2 cup Parmesan Cheese Pecorino Romano is a substitute.
  • 1/2 cup Monterey Jack Cheese Cheddar is a good substitute.
For the Crunchy Topping
  • 1/2 cup Crushed Pork Rind Crumbs Provides a low-carb crunch.

Equipment

  • Skillet
  • Baking Dish

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 375°F (190°C) and prepare a baking dish by greasing it with olive oil or butter.
  2. In a skillet, heat 2 tablespoons of olive oil over medium-high heat. Season the shrimp with salt and pepper and sear for 1-2 minutes on each side until pink.
  3. In the same skillet, melt 2 tablespoons of butter and sauté the onion for 3-4 minutes until soft. Add minced garlic, fresh basil, and nutmeg, stirring for 30 seconds.
  4. Pour in 1 cup of heavy whipping cream and simmer for 3-4 minutes. Gradually add half the Parmesan and all the Monterey Jack cheese, mixing until smooth.
  5. Spread the seared shrimp in the baking dish, pour over the cream sauce, and top with remaining Parmesan and crushed pork rind crumbs.
  6. Bake in the preheated oven for 25 minutes until golden brown and bubbly. Let rest briefly before serving.

Nutrition

Serving: 1servingCalories: 320kcalCarbohydrates: 3gProtein: 24gFat: 24gSaturated Fat: 12gPolyunsaturated Fat: 1gMonounsaturated Fat: 9gCholesterol: 220mgSodium: 600mgPotassium: 500mgSugar: 1gVitamin A: 700IUVitamin C: 2mgCalcium: 250mgIron: 1mg

Notes

Always use fresh garlic and basil for better flavor. Store leftovers in an airtight container for up to 3 days.

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