While flipping through my favorite recipe book, my eyes landed on a classic French dish that always felt out of reach—until now. Introducing Keto Garlic Shrimp Au Gratin, a creamy and low-carb delight that makes my heart sing! With the perfect blend of seared shrimp and a rich garlic cream sauce, this recipe transforms an indulgent favorite into a guilt-free dinner that won’t derail your diet. Not only is it packed with flavor, but it also clocks in at just 3 net carbs per serving, making it a smart choice for anyone seeking a tasty keto option. It’s quick to prepare and a sure crowd-pleaser, ideal for family gatherings or date night. Curious about how this rich, velvety dish comes together? Let’s dive in!

Why is this dish a must-try?
Irresistible Creaminess: The rich, garlic cream sauce envelops perfectly seared shrimp, creating a dish that’s decadent yet low-carb.
Quick & Easy: With minimal prep and cook time, you can whip up this gourmet delight in no time!
Keto-Friendly Delight: At just 3 net carbs per serving, this recipe makes indulging guilt-free a reality.
Versatile Ingredients: Try swapping in scallops or crab for a delightful twist, or add a layer of Shirataki noodles for a fun variation!
Crowd-Pleaser: Impress your guests with this elegant yet simple dish, perfect for any occasion. Don’t forget to pair it with a fresh green salad for a balanced meal! You might also enjoy similar flavors in my Crockpot Garlic Parmesan for a cozy dinner.
Keto Garlic Shrimp Au Gratin Ingredients
For the Shrimp
• Large Shrimp – Make sure they’re peeled, deveined, and tails removed for a seamless dining experience.
• Olive Oil – Ideal for searing; avocado oil works as a fantastic substitute!
• Salt & Pepper – Essential for enhancing flavors; adjust to your taste preference.
For the Cream Sauce
• Butter – Adds richness and depth when sautéing the aromatics.
• Finely Chopped Onion – Provides sweetness; shallots can be used for a more delicate flavor.
• Minced Garlic – This is a key player in our aromatic base; fresh garlic packs the best punch!
• Fresh Basil – Elevates the dish with its fragrant aroma; use dried if in a pinch but fresh is ideal.
• Ground Nutmeg – A touch of warmth and complexity; add it only if you’re feeling adventurous.
• Heavy Whipping Cream – Creates that luxurious sauce; avoid low-fat versions to keep it creamy.
• Grated Parmesan Cheese – A must-have for creaminess; it’s a staple in Keto Garlic Shrimp Au Gratin.
• Shredded Monterey Jack Cheese – Melts beautifully to contribute to the overall creaminess and flavor.
For the Topping
• Crushed Pork Rind Crumbs – This low-carb alternative to breadcrumbs adds a delightful crunch to the top!
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). While the oven heats, take a large baking dish and grease it generously with butter to ensure that our Keto Garlic Shrimp Au Gratin doesn’t stick and gets beautifully golden as it bakes.
Step 2: Sear the Shrimp
In a large skillet, heat a tablespoon of olive oil over medium-high heat. Season your peeled and deveined large shrimp with salt and pepper and add them to the hot skillet. Sear the shrimp for about 1-2 minutes on each side until they turn pink and opaque; then, remove them from the skillet and set aside.
Step 3: Sauté the Aromatics
Using the same skillet, lower the heat to medium and add a couple of tablespoons of butter. Once melted, add finely chopped onions and sauté for 3-4 minutes until they become soft and translucent. Then, stir in minced garlic, fresh basil, and a pinch of ground nutmeg for about 30 seconds or until fragrant, creating a delightful aroma in your kitchen.
Step 4: Make the Cream Sauce
Pour in the heavy whipping cream into the skillet, stirring to combine with the sautéed aromatics. Allow the mixture to simmer for 3-4 minutes, until it thickens slightly. Next, stir in half of the grated Parmesan cheese and all the shredded Monterey Jack cheese, mixing until completely smooth and creamy. Season this luxurious sauce to taste with salt and pepper.
Step 5: Assemble the Dish
Now, nestle the seared shrimp in the prepared baking dish, spreading them out evenly. Pour the luscious cream sauce over the shrimp, ensuring every piece is generously coated, creating a rich base for our Keto Garlic Shrimp Au Gratin.
Step 6: Add Topping
In a small bowl, combine the remaining grated Parmesan cheese with crushed pork rinds to create a crunchy topping. Sprinkle this mixture evenly over the creamy shrimp and sauce, adding an extra layer of texture to your dish.
Step 7: Bake
Carefully place the baking dish in the preheated oven and bake for 25 minutes. You’re looking for a bubbling golden top; the creamy sauce should be hot and inviting, giving you that gorgeous au gratin finish that will make your heart happy.

How to Store and Freeze Keto Garlic Shrimp Au Gratin
Fridge: Store leftovers in an airtight container for up to 3 days. Reheat gently in the microwave or oven, adding a splash of cream if needed to restore the creaminess.
Freezer: This dish can be frozen for up to 2 months. Ensure it’s cooled completely, then wrap tightly in plastic wrap and foil to prevent freezer burn.
Reheating: When ready to enjoy, thaw overnight in the fridge before reheating. Bake at 350°F (175°C) until heated through, about 15-20 minutes.
Storage Tip: Always use an airtight container to maintain the flavor and texture of your Keto Garlic Shrimp Au Gratin!
What to Serve with Keto Garlic Shrimp Au Gratin?
Enhance your dining experience with delightful pairings that complement the creamy goodness of this scrumptious dish.
-
Steamed Asparagus:
Bright green asparagus provides a crisp contrast and works beautifully to cleanse the palate between bites. -
Garlic Butter Broccoli:
Tender broccoli drizzled in garlic butter echoes the flavors in the au gratin, creating a harmonious balance of taste. -
Mixed Green Salad:
A fresh salad with a tangy vinaigrette adds brightness, cutting through the richness of the creamy shrimp casserole. -
Zucchini Noodles:
Light and low-carb, zucchini noodles offer a delightful base that allows the shrimp and sauce to shine without being too heavy. -
Cauliflower Rice:
This mild, fluffy side mimics traditional rice, soaking up flavors from the dish while keeping carbs at bay. -
Cheesy Cauliflower Mash:
Rich and creamy, this mash serves as a comforting side that pairs well with the indulgent au gratin, creating a satisfying texture. -
Chardonnay Wine:
A chilled glass of chardonnay enhances the meal, bringing out the delicate flavors in the shrimp and cream sauce.
Indulge in these thoughtful choices for a meal that will leave your taste buds dancing with joy!
Make Ahead Options
These Keto Garlic Shrimp Au Gratin are perfect for meal prep enthusiasts seeking time-saving solutions! You can prepare the creamy sauce and sear the shrimp up to 24 hours in advance, ensuring optimal flavor and quality. Simply refrigerate the sauce in an airtight container and store the shrimp separately. When you’re ready to bake, combine the shrimp with the cream sauce in a greased baking dish, top with the pork rind mixture, and bake as directed. This method allows you to enjoy a delectable, restaurant-quality dish with minimal effort after a busy day. Just remember to reheat the sauce slowly to restore its creamy consistency!
Keto Garlic Shrimp Au Gratin Variations
Feel free to mix things up and create your perfect version of this delightful dish!
-
Seafood Swap: Replace shrimp with scallops or chunks of crab for a different but equally luxurious seafood experience.
The addition of crabmeat brings a sweet flavor that pairs beautifully with the creamy sauce, making it feel even more indulgent. -
Cheese Variety: Experiment with different types of shredded cheese, such as cheddar or gouda for a unique twist on the classic flavor.
Each cheese has its own personality, with cheddar offering sharpness and gouda bringing a smoky depth that elevates the dish. -
Low-Carb Noodles: Add a layer of Shirataki noodles into the baking dish for a fun twist that gives you a heartier bite and texture.
These noodles soak up the luxurious sauce, making every forkful a delightful mix of flavors and mouthfeel. -
Herb Boost: Fresh dill or parsley can be added for an aromatic lift, giving your dish a burst of freshness that complements the richness.
This simple addition can transform the taste, leaving your taste buds dancing with joy! -
Creamy Spin: For a more indulgent sauce, mix in a bit of cream cheese before the heavy cream to enhance the creaminess and tang.
The cream cheese helps create a velvety texture that hugs each shrimp perfectly. -
Spice It Up: Add a pinch of red pepper flakes to introduce a gentle kick that will sneak its way into the creamy goodness.
It’s a small tweak, but a little heat can elevate the entire dish, making it memorable! -
Veggie Addition: Toss in some sautéed spinach or sautéed mushrooms to add a nutrient boost and extra flavor complexity.
These veggies meld wonderfully with the creamy sauce, making each bite wholesome and satisfying.
If you’re still craving that creamy comfort, don’t forget to check out my Garlic Parmesan Crockpot for a cozy spin on flavors, or enjoy the delightful taste of Crockpot Garlic Parmesan chicken for an easy family dinner!
Expert Tips for Keto Garlic Shrimp Au Gratin
• Fresh Ingredients: Always opt for fresh garlic and herbs to maximize the vibrant flavors of your Keto Garlic Shrimp Au Gratin.
• Perfectly Cooked Shrimp: Avoid overcooking the shrimp while searing; they will continue to cook in the oven, ensuring they remain tender.
• Thickening Cream Sauce: If your cream sauce isn’t thickening, increase the heat slightly and let it simmer a bit longer to achieve that luxurious consistency.
• Cheese Variations: Feel free to experiment with other cheeses like cheddar or gouda for unique flavor profiles that complement the dish.
• Storage Success: For meal prep, refrigerate leftovers in an airtight container for up to 3 days. Gently reheat to bring back creaminess if it has separated.

Keto Garlic Shrimp Au Gratin Recipe FAQs
What type of shrimp should I use?
Absolutely use large shrimp for this recipe! Make sure they are peeled, deveined, and have their tails removed for smooth dining. Fresh shrimp will yield the best flavor, but frozen shrimp can also work—just ensure they are completely thawed and patted dry before cooking.
How should I store leftover Keto Garlic Shrimp Au Gratin?
For the best results, store any leftovers in an airtight container in the fridge for up to 3 days. When reheating, do so gently in the microwave or oven, adding a splash of cream to help restore the dish’s original creaminess and texture.
Can I freeze Keto Garlic Shrimp Au Gratin?
Yes! This delicious dish can be frozen for up to 2 months. Allow it to cool completely before wrapping tightly in plastic wrap and then in foil to prevent freezer burn. Make sure to label and date it too, so you can keep track!
What if my cream sauce isn’t thickening?
If you find your cream sauce isn’t thickening as expected, don’t worry! Simply increase the heat and let it simmer a little longer, stirring occasionally. You’re aiming for a nice, velvety consistency that clings to the shrimp. If necessary, you can also add a touch more Parmesan cheese to help it along.
Are there any dietary considerations for this recipe?
While this Keto Garlic Shrimp Au Gratin is great for low-carb diets, it’s important to note that it contains dairy and shrimp, which could pose allergy concerns. If you’re preparing this dish for guests, make sure to ask about any allergies they might have. For a dairy-free alternative, consider using coconut cream and a suitable dairy-free cheese.
Can I customize the ingredients in this recipe?
Very! This recipe is quite versatile. Feel free to swap large shrimp for other seafood options like scallops or crab. You can also experiment with different cheeses—cheddar or gouda could offer delightful variations. Adding a layer of Shirataki noodles at the base can be a fun twist too!

Creamy Keto Garlic Shrimp Au Gratin for Low-Carb Indulgence
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) and grease a baking dish with butter.
- In a skillet, heat olive oil over medium-high heat. Season shrimp and sear for 1-2 minutes until pink and opaque, then set aside.
- Lower the heat, add butter, and sauté onions for 3-4 minutes until soft. Stir in garlic, basil, and nutmeg until fragrant.
- Add heavy cream to skillet, simmer for 3-4 minutes. Stir in Parmesan and Monterey Jack cheese until smooth. Season with salt and pepper.
- Nestle seared shrimp in baking dish, cover with cream sauce.
- Combine remaining Parmesan and crushed pork rinds, then sprinkle over the dish.
- Bake for 25 minutes until bubbling and golden.

Leave a Reply