Keto Low-Carb Shrimp Alfredo

This Keto Low-Carb Creamy Garlic Shrimp Alfredo is a rich, indulgent dish that’s packed with flavor—without the carbs! Juicy, pan-seared shrimp are coated in a velvety garlic parmesan Alfredo sauce, making every bite irresistibly creamy. Served over zucchini noodles, spaghetti squash, or your favorite pasta alternative, this dish is a perfect way to enjoy a comforting, restaurant-quality meal while staying on track. 

This post contains affiliate links. Please read my full disclosure here.

Ready in under 30 minutes, it’s a quick and satisfying option for busy weeknights or an elegant low-carb dinner!

Why Readers Love This Recipe

⭐️⭐️⭐️⭐️⭐️
O-M-Gina this recipe is so quick, easy and tastey!! I made it as the recipe states and it was delicious. Then I played around with it by adding a few other seasonings/herbs. I still can’t believe how fast and easy this recipe is! Thank you so much for sharing this!!
~Rosie

Key Ingredients

Detailed measurements and full instructions can be found in the recipe card at the bottom of this post.

• Zucchini – Used as a low-carb pasta alternative, zucchini noodles (zoodles) provide a light, fresh texture that pairs perfectly with the creamy Alfredo sauce. They absorb flavors well and keep the dish keto-friendly without the heavy carbs of traditional pasta.
• Kosher Salt – Helps draw out excess moisture from the zucchini to prevent watery noodles. It also enhances the overall flavor of the dish.
• Olive Oil – Used for sautéing the shrimp.
• Shrimp – The star protein! Shrimp is high in protein, low in carbs, and cooks quickly, making it a perfect addition to this creamy dish. It also adds a slightly sweet flavor that complements the rich Alfredo sauce.
• Garlic Cloves – Fresh garlic infuses the dish with a deep, savory aroma and classic Italian flavor. It enhances the sauce and pairs beautifully with shrimp.
• Unsalted Butter – Used for sautéing garlic and building the Alfredo sauce, butter adds richness and depth of flavor. Unsalted butter allows better control over the salt levels in the dish.
• Heavy Cream – The foundation of the Alfredo sauce, heavy cream makes it ultra-rich and creamy while keeping it keto-friendly with zero carbs.
• Cream Cheese – Adds extra creaminess and helps thicken the sauce, making it silky smooth.
• Parmigiano Reggiano Cheese – Aged Parmesan cheese melts into the sauce, adding a bold, nutty, and salty flavor. Using freshly grated cheese ensures a smooth, lump-free consistency.

How to Sweat Out Zucchini Noodles (Zoodles) & Why

This step is important, because if skipped, the pan will be filled with water and create more of a soup. It's happened to me, and trust, you don't want it! This steps also gives the zucchini a consistency and texture that is close to pasta.

1. Salt the Zoodles – Place your spiralized zucchini noodles in a colander and sprinkle 1-2 teaspoons of salt over them. The salt draws out moisture.
2. Let Them Sit – Leave them for 15-30 minutes to allow the excess water to release.
3. Pat Dry – After sitting, use paper towels or a clean kitchen towel to press and absorb the moisture.
4. Optional: Quick Sauté – For extra firmness, lightly sauté the zoodles in a dry pan (no oil) over medium heat for 1-2 minutes before adding sauce.

This simple step ensures your zoodles stay firm, soak up flavor, and don’t dilute your creamy Alfredo sauce!

How to Make Keto Shrimp Alfredo

Simple and easy to follow!

Detailed measurements and full instructions can be found in the recipe card at the bottom of this post.

1. Sweat out the zucchini to remove excess moisture.
2. Heat a skillet on medium-high heat. Add olive oil, shrimp, and minced garlic. Cook each side of the shrimp for 1-2 minutes until bright pink.
3. Remove the shrimp from the skillet and set aside on a plate.
4. Add butter to the skillet on medium heat. Allow the butter to partially melt and then add chunks of cream cheese, Parmesan reggiano, heavy cream, red pepper flakes, and salt and pepper to taste.
5. Stir continuously until the cheese has melted.
6. Add the shrimp and zucchini noodles to the pan. Stir to coat the zucchini. Cook until the zucchini softens.

Do The Noodles Taste Like Pasta?

No. The shape provides a nice substitute for a dish like this, but nothing tastes like bread or pasta....but bread and pasta.

What Side Dishes to Pair

Cauliflower Mash
Air Fryer Roasted Green Beans
Roasted Garlic Brussels Sprouts
Zucchini Pasta Salad

How to Store

Store zoodles separately to prevent them from getting soggy. Refrigerate the dish for up to 4 days in an air tight container.

How to Reheat

Stovetop (Best Method): Reheat gently over low heat, stirring frequently. Add a splash of heavy cream or broth to restore the sauce’s creaminess.
Microwave: Heat in 30-second intervals, stirring between each, to prevent the sauce from separating.
Avoid High Heat. Overheating can make the shrimp rubbery and cause the sauce to break.

Freezer Tips

Shrimp and dairy-based sauces don’t freeze well, as they can become grainy or separate when reheated. Alfredo sauce alone can be frozen in a separate container for up to 2 months.

Pin this recipe for later here.

More Keto Alfredo Recipes

Keto Low Carb Fettuccine Chicken Alfredo
Keto Low Carb Chicken Alfredo Fathead Pizza
Instant Pot Spaghetti Squash Alfredo

Click here for a complete listing of Keto Low-Carb Recipes.