Delicious Quick Keto Shrimp Scampi Casserole Recipe In 45 Minutes!

Why I Created This Keto Shrimp Scampi Casserole Recipe
I’ve always loved shrimp scampi, but sometimes I crave something a little heartier—something that feels like a hug on a plate. That’s how this Keto Shrimp Scampi Casserole was born. I wanted all the flavors of classic scampi—garlic, butter, lemon, and herbs—but in a form that’s more filling and family-friendly. Turning it into a casserole was the perfect solution.
Another reason I created this recipe was to make keto eating easier. When you’re following a low-carb lifestyle, it’s easy to feel like you’re missing out on comfort foods. But this dish proves you don’t have to sacrifice flavor or satisfaction. It’s creamy, cheesy, and packed with protein, all while keeping the carbs in check. Plus, it’s a great way to use up shrimp if you’ve got some in the freezer.
Finally, I wanted a recipe that was simple enough for weeknights but still impressive enough for guests. This Keto Shrimp Scampi Casserole fits the bill perfectly. It’s quick to make, looks beautiful when it comes out of the oven, and tastes like you spent hours in the kitchen. Trust me, no one will guess it only took 45 minutes.
5 Reasons You Will Love This Keto Shrimp Scampi Casserole Recipe
First, it’s incredibly easy to make. With just a few simple steps, you’ll have a restaurant-quality dish on your table in under an hour. No complicated techniques or hard-to-find ingredients—just good, wholesome food.
Second, it’s packed with flavor. The combination of garlic, butter, lemon, and herbs creates a sauce that’s rich, tangy, and downright addictive. And let’s not forget the melted cheese on top—because everything is better with cheese.
Third, it’s a great way to get your protein. Shrimp is lean, low in calories, and high in nutrients like selenium and vitamin B12. This casserole is a delicious way to enjoy all the benefits of shrimp while keeping your meal keto-friendly.
Fourth, it’s versatile. You can easily customize this recipe to suit your tastes. Add some spinach for extra greens, swap the shrimp for chicken, or throw in some red pepper flakes for a little heat. The possibilities are endless.
Fifth, it’s a crowd-pleaser. Whether you’re cooking for your family or hosting a dinner party, this Keto Shrimp Scampi Casserole is sure to impress. It’s elegant enough for company but simple enough for a weeknight meal.
Ingredients for Keto Shrimp Scampi Casserole Recipe
- 1 pound shrimp, peeled and deveined
- 3 tablespoons butter
- 4 cloves garlic, minced
- 1/4 cup heavy cream
- 1/2 cup chicken broth
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/2 teaspoon red pepper flakes (optional)
- 1 tablespoon lemon juice
- 1/2 cup grated Parmesan cheese
- 1 cup shredded mozzarella cheese
- 1/4 cup chopped fresh parsley
- 1/2 cup crushed pork rinds (optional, for topping)
Substitutions: If you don’t have heavy cream, you can use coconut cream for a dairy-free option. For a nutty flavor, swap the Parmesan for Pecorino Romano. If you’re not a fan of pork rinds, you can skip them or use almond flour for a bit of crunch. And if you prefer a milder dish, leave out the red pepper flakes.

Tools You Need to Make Keto Shrimp Scampi Casserole Recipe
- Large skillet
- 9×13-inch baking dish
- Mixing bowl
- Measuring cups and spoons
- Cheese grater
How to Make Keto Shrimp Scampi Casserole Recipe Step by Step
Step 1: Preheat the Oven and Prep the Shrimp
First, preheat your oven to 375°F (190°C). While the oven is heating up, pat the shrimp dry with a paper towel. This helps them cook evenly and prevents excess moisture in the casserole. If your shrimp are frozen, make sure they’re fully thawed before starting.
Step 2: Cook the Garlic Butter Sauce
In a large skillet, melt the butter over medium heat. Once the butter is melted, add the minced garlic and sauté for about 1 minute, just until it’s fragrant. Be careful not to let the garlic burn—it can turn bitter if it cooks too long. If you’re using red pepper flakes, add them now for a little kick.
Step 3: Add the Liquid Ingredients
Pour in the heavy cream and chicken broth, stirring to combine. Let the mixture simmer for about 3-4 minutes, until it starts to thicken slightly. This is where the magic happens—the sauce will become rich and creamy, perfect for coating the shrimp and cheese later.
Step 4: Season and Add the Shrimp
Stir in the salt, black pepper, and lemon juice. Then, add the shrimp to the skillet and cook for 2-3 minutes, just until they turn pink. Be careful not to overcook them—they’ll finish cooking in the oven, so you want them to stay tender and juicy.
Step 5: Combine with Cheese and Transfer to Baking Dish
Remove the skillet from the heat and stir in the Parmesan cheese and half of the mozzarella cheese. The sauce should be thick and creamy at this point. Transfer the mixture to a 9×13-inch baking dish, spreading it out evenly. Sprinkle the remaining mozzarella cheese on top, and if you’re using crushed pork rinds for extra crunch, add those now too.
Step 6: Bake Until Bubbly and Golden
Bake the casserole for 15-20 minutes, or until the cheese is melted and golden brown. You want it to be bubbly and slightly crispy on top—that’s when you know it’s ready. If you like, you can broil it for the last 1-2 minutes to get a little extra color, but keep an eye on it so it doesn’t burn.
Step 7: Garnish and Serve
Once the casserole is out of the oven, let it cool for a few minutes. Then, sprinkle the chopped fresh parsley on top for a pop of color and freshness. Serve it warm, straight from the baking dish, and enjoy every cheesy, garlicky bite.

My Pro Tips for the Best Keto Shrimp Scampi Casserole Recipe
- Use fresh shrimp for the best flavor and texture. Frozen shrimp works in a pinch, but fresh shrimp will give you the best results. If you do use frozen shrimp, make sure to thaw them completely and pat them dry before cooking.
- Pat the shrimp dry before cooking. This helps them sear properly and prevents the casserole from becoming watery. Excess moisture can dilute the flavors, so take the extra minute to dry them off.
- Don’t overcook the shrimp in the skillet. They’ll finish cooking in the oven, so you want them to stay tender. Overcooking them in the skillet can make them rubbery, and no one wants that.
- Add an extra clove or two of garlic if you love garlic flavor. I’m a garlic lover, so I often add a little extra. If you’re not as crazy about garlic, you can stick to the recipe as written.
- Sprinkle crushed pork rinds on top for extra crunch. This is a great way to add texture to the casserole without adding carbs. If you don’t have pork rinds, you can skip them or use almond flour instead.
- Let the casserole rest for a few minutes before serving. This gives the cheese a chance to set slightly, making it easier to serve. Plus, it’s less likely to burn your mouth if you wait a minute or two!
Delicious Variations of Keto Shrimp Scampi Casserole Recipe
- Add spinach for extra greens. Stir in a handful of fresh spinach when you add the shrimp to the skillet. It wilts down beautifully and adds a nice pop of color and nutrition.
- Swap shrimp for chicken. If you’re not a fan of shrimp, you can use diced chicken breast or thigh instead. Just make sure to cook the chicken thoroughly before adding it to the casserole.
- Make it spicy with red pepper flakes. If you love heat, add an extra pinch of red pepper flakes to the sauce. You can also stir in some diced jalapeños for a different kind of spice.
- Add mushrooms for extra umami. Sauté some sliced mushrooms with the garlic for a deeper, earthier flavor. They pair beautifully with the shrimp and cheese.
- Use different cheeses for variety. Swap the mozzarella for provolone or Gouda for a different flavor profile. You can also mix in some cream cheese for extra creaminess.
What to Serve With Keto Shrimp Scampi Casserole Recipe
This Keto Shrimp Scampi Casserole is rich and filling, so you don’t need much to round out the meal. A simple side salad with a tangy vinaigrette is a great way to add some freshness. I love a mix of arugula, cherry tomatoes, and cucumber with a lemon-olive oil dressing.
If you want something a little heartier, roasted asparagus or broccoli is a fantastic choice. The slight char from roasting pairs perfectly with the creamy casserole. You can also serve it with cauliflower rice or zucchini noodles for a low-carb twist on classic sides.
For drinks, a crisp white wine like Sauvignon Blanc or Pinot Grigio complements the flavors beautifully. If you’re not a wine drinker, sparkling water with a squeeze of lemon is a refreshing alternative. And of course, a warm slice of keto garlic bread would be the ultimate indulgence.
How to Store Leftover Keto Shrimp Scampi Casserole Recipe
If you’re lucky enough to have leftovers, store them in an airtight container in the refrigerator for up to 3 days. The sauce may thicken as it cools, but it will loosen up again when you reheat it. To reheat, you can use the microwave or the oven—just make sure it’s warmed through before serving.
If you want to freeze the casserole, it’s best to do so before baking. Assemble the casserole in a freezer-safe dish, cover it tightly with foil or plastic wrap, and freeze for up to 3 months. When you’re ready to eat, thaw it in the refrigerator overnight and then bake as directed. You may need to add a few extra minutes to the baking time since it will be starting from cold.
One thing to note: shrimp can get a little rubbery when reheated, so it’s best to enjoy this casserole fresh if possible. But if you do have leftovers, they’ll still be delicious—just maybe not quite as tender as the first time around.
Frequently Asked Questions About Keto Shrimp Scampi Casserole Recipe
- Can I make this Keto Shrimp Scampi Casserole ahead of time? Yes! You can assemble the casserole up to a day in advance and store it in the refrigerator. When you’re ready to bake, just pop it in the oven and add a few extra minutes to the cooking time if it’s cold.
- Can I use frozen shrimp? Absolutely. Just make sure to thaw the shrimp completely and pat them dry before cooking. Frozen shrimp can release a lot of water, which can dilute the flavors of the sauce.
- Is this recipe dairy-free? No, this recipe contains butter, heavy cream, and cheese. However, you can make it dairy-free by using coconut oil instead of butter, coconut cream instead of heavy cream, and dairy-free cheese alternatives. The flavor will be slightly different, but it can still be delicious.
- Can I add vegetables to this casserole? Yes! Feel free to add your favorite low-carb vegetables. Spinach, mushrooms, and bell peppers all work well. Just make sure to sauté them first so they don’t release too much water into the casserole.
- How do I know when the shrimp is cooked? Shrimp is done when it turns pink and opaque. It cooks quickly, so keep an eye on it—overcooked shrimp can become tough and rubbery. In this recipe, the shrimp will finish cooking in the oven, so you don’t need to cook them all the way through in the skillet.
- Can I double this recipe? Yes, you can easily double the ingredients and use a larger baking dish. Just make sure to adjust the cooking time as needed—it may take a few extra minutes for the casserole to heat through.
The Story Behind My Keto Shrimp Scampi Casserole Recipe
I’ll never forget the first time I made this Keto Shrimp Scampi Casserole. It was a chilly autumn evening, and I was craving something warm and comforting. I had a bag of shrimp in the freezer and a craving for scampi, but I wanted something more substantial than the usual pasta dish. That’s when the idea for this casserole hit me.
I started by sautéing garlic in butter, just like I would for classic scampi. The smell alone was enough to make my mouth water. Then, I added the cream and broth, letting the sauce simmer until it was thick and luxurious. The shrimp went in next, turning pink in just a couple of minutes. I stirred in the cheese, transferred everything to a baking dish, and popped it in the oven.
The result was even better than I imagined. The casserole came out bubbly and golden, with the cheese melted into a perfect, gooey layer on top. The first bite was pure comfort—creamy, garlicky, and packed with shrimp. My husband took one bite and declared it a keeper, and I knew I had to share it with all of you.
Since then, this Keto Shrimp Scampi Casserole has become a staple in our house. It’s perfect for busy weeknights when I want something quick but satisfying, and it’s always a hit when we have guests over. I love how versatile it is—you can customize it with your favorite ingredients and make it your own. And the best part? It’s keto-friendly, so I can enjoy it without any guilt.
Pin This Keto Shrimp Scampi Casserole Recipe for Later
I hope you love this Keto Shrimp Scampi Casserole as much as I do. It’s the perfect blend of comfort and flavor, and it’s so easy to make. Whether you’re cooking for your family or hosting a dinner party, this dish is sure to impress. Give it a try and let me know what you think—I can’t wait to hear how it turns out for you!
And don’t forget to save this recipe for later. The next time you’re craving something warm, cheesy, and delicious, you’ll know exactly what to make. Happy cooking, friends!
Keto Shrimp Scampi Casserole Recipe
Ingredients
- 1 lb large shrimp, peeled and deveined
- 3 tbsp butter
- 4 cloves garlic, minced
- 1/2 cup heavy cream
- 1/2 cup chicken broth
- 1/4 cup grated Parmesan cheese
- 1 tbsp lemon juice
- 1/2 tsp salt
- 1/4 tsp black pepper
- 1/4 tsp red pepper flakes (optional)
- 1/2 cup shredded mozzarella cheese
- 2 tbsp chopped fresh parsley
- 1 cup cauliflower rice
Instructions
- Preheat your oven to 375°F (190°C) and grease a 9x9-inch baking dish.
- In a large skillet, melt 2 tablespoons of butter over medium heat. Add the minced garlic and sauté for 1 minute until fragrant.
- Add the shrimp to the skillet and cook for 2-3 minutes on each side until they turn pink. Remove the shrimp from the skillet and set aside.
- In the same skillet, add the heavy cream, chicken broth, Parmesan cheese, lemon juice, salt, black pepper, and red pepper flakes (if using). Stir well and let it simmer for 3-4 minutes until slightly thickened.
- Add the cauliflower rice to the skillet and stir to combine with the sauce. Cook for an additional 2 minutes.
- Transfer the cauliflower rice mixture to the prepared baking dish. Arrange the cooked shrimp on top and sprinkle with shredded mozzarella cheese.
- Bake in the preheated oven for 15-20 minutes, or until the cheese is melted and bubbly.
- Garnish with chopped fresh parsley before serving.
