Keto Shrimp With Creamy Pesto – A Fast, Flavor-Packed Dinner
This is the kind of weeknight recipe that makes you feel like you’re winning at dinner. Juicy shrimp, a rich basil pesto, and a splash of cream come together in minutes for a dish that tastes like something from your favorite restaurant. It’s low-carb without feeling like a compromise.
Serve it over zucchini noodles, sautéed spinach, or just enjoy it straight from the pan. Simple, fast, and so satisfying.
Ingredients
Method
- Pat the shrimp dry. Moisture makes shrimp steam instead of sear. Season both sides with salt and pepper.
- Heat the pan. Set a large skillet over medium-high heat. Add the olive oil and 1 tablespoon of butter.
- Sear the shrimp. Arrange shrimp in a single layer and cook 1–2 minutes per side until pink and just opaque. Remove to a plate. Don’t overcook.
- Sauté the garlic. Lower heat to medium. Add remaining butter and the garlic. Cook 30 seconds, just until fragrant.
- Build the sauce. Stir in the pesto and heavy cream. Bring to a gentle simmer. The sauce should thicken slightly in 2–3 minutes.
- Add Parmesan and lemon. Stir in Parmesan, lemon juice, and red pepper flakes if using. Taste and adjust salt and pepper.
- Return the shrimp. Add shrimp back to the pan. Toss to coat and warm through for about 1 minute.
- Finish and serve. Top with fresh basil and extra Parmesan. Serve over your favorite low-carb base or enjoy as-is.
What Makes This Recipe So Good
- Fast cooking time: Shrimp cook in a few minutes, and the sauce comes together just as quickly. Perfect for busy nights.
- Big flavor, minimal effort: Pesto brings tons of taste with almost no work, especially if you use a good store-bought brand.
- Keto-friendly and filling: Cream, olive oil, and shrimp keep you full without the carbs.
No need for bread or pasta.
- Flexible: You can use fresh or frozen shrimp, homemade or store-bought pesto, and different greens or veggies.
- Restaurant-level richness: The creamy pesto sauce coats every bite and feels indulgent, but the ingredient list is short.
What You’ll Need
- 1 pound large shrimp, peeled and deveined (tails on or off)
- 2 tablespoons olive oil or avocado oil
- 2 tablespoons unsalted butter
- 3 cloves garlic, minced
- 1/2 cup basil pesto (homemade or high-quality store-bought)
- 3/4 cup heavy cream (or coconut cream for dairy-free)
- 1/4 cup grated Parmesan cheese, plus more for serving
- 1 tablespoon lemon juice, plus zest to taste
- 1/4 teaspoon red pepper flakes (optional)
- Salt and black pepper, to taste
- Fresh basil, chopped, for garnish
- Optional for serving: zucchini noodles, sautéed spinach, roasted asparagus, or shirataki noodles
How to Make It
- Pat the shrimp dry. Moisture makes shrimp steam instead of sear. Season both sides with salt and pepper.
- Heat the pan. Set a large skillet over medium-high heat. Add the olive oil and 1 tablespoon of butter.
- Sear the shrimp. Arrange shrimp in a single layer and cook 1–2 minutes per side until pink and just opaque.
Remove to a plate. Don’t overcook.
- Sauté the garlic. Lower heat to medium. Add remaining butter and the garlic.
Cook 30 seconds, just until fragrant.
- Build the sauce. Stir in the pesto and heavy cream. Bring to a gentle simmer. The sauce should thicken slightly in 2–3 minutes.
- Add Parmesan and lemon. Stir in Parmesan, lemon juice, and red pepper flakes if using.
Taste and adjust salt and pepper.
- Return the shrimp. Add shrimp back to the pan. Toss to coat and warm through for about 1 minute.
- Finish and serve. Top with fresh basil and extra Parmesan. Serve over your favorite low-carb base or enjoy as-is.
Keeping It Fresh
- Storage: Refrigerate leftovers in an airtight container for up to 3 days.
Shrimp are delicate, so don’t push it longer.
- Reheating: Warm gently over low heat on the stove. Add a splash of cream or water to loosen the sauce. Avoid microwaving on high, which can make shrimp rubbery.
- Make-ahead tips: You can prep the shrimp and measure out sauce ingredients in advance.
Cook just before serving for best texture.
- Freezing: Not ideal. Cream sauces can split when thawed, and shrimp can get tough after freezing and reheating.
Why This is Good for You
- Low in carbs, high in satisfaction: This recipe focuses on protein and healthy fats, which help reduce cravings and keep energy stable.
- Protein-rich: Shrimp pack lean protein with very few calories, supporting muscle maintenance on a keto plan.
- Healthy fats: Olive oil, pesto, and a bit of cream provide fats that help you feel full and support ketosis.
- Nutrient boost: Basil and garlic bring antioxidants, while Parmesan offers calcium and savory depth without many carbs.
Common Mistakes to Avoid
- Overcooking the shrimp: Shrimp turn tough quickly. Pull them off the heat as soon as they’re opaque and pink.
- Boiling the cream sauce: A hard boil can cause splitting.
Keep it to a gentle simmer for a smooth, silky texture.
- Watery zucchini noodles: If using zoodles, salt and drain them or sauté briefly to remove excess moisture before topping with sauce.
- Using low-quality pesto: The sauce depends on it. Choose pesto with real basil, olive oil, pine nuts or cashews, and Parmesan—not filler oils.
- Skipping the lemon: A touch of acid brightens the rich sauce and keeps the flavors balanced.
Alternatives
- Dairy-free: Use coconut cream instead of heavy cream and skip the Parmesan. Add nutritional yeast for a cheesy vibe.
- Nut-free pesto: Make or buy pesto with sunflower seeds or pumpkin seeds instead of pine nuts.
- Protein swap: Try scallops or diced chicken thigh.
Adjust cook times accordingly (chicken takes longer).
- Veggie add-ins: Stir in baby spinach, cherry tomatoes (in moderation for keto), or sautéed mushrooms for more texture.
- Extra heat: Add more red pepper flakes or a pinch of cayenne to cut through the richness.
FAQ
Can I use frozen shrimp?
Yes. Thaw them in the refrigerator overnight or under cold running water for 10–15 minutes. Pat very dry before cooking so they sear properly.
What’s the best store-bought pesto?
Look for one with olive oil, basil, nuts, Parmesan, and garlic listed up front.
Avoid versions with canola or soybean oil as the main fat. Chilled, fresh pestos often taste brighter than shelf-stable jars.
Is this recipe spicy?
Not by default. The red pepper flakes are optional and easy to adjust.
Start with a pinch and add more if you like heat.
How do I keep the sauce from breaking?
Use medium heat, simmer gently, and add the cheese after the cream and pesto have combined. If it starts to split, whisk in a tablespoon of cream off the heat to bring it back together.
What can I serve this with besides zoodles?
Sautéed spinach, roasted broccoli, cauliflower rice, or grilled asparagus are all great low-carb sides. Shirataki noodles work if you want a noodle feel without carbs.
Can I make it without Parmesan?
Yes.
The sauce will still be delicious with just cream and pesto. For extra body, simmer a minute longer to reduce slightly, or add a spoon of mascarpone or dairy-free alternative.
How many carbs are in this dish?
Exact numbers depend on your pesto and cheese brands. Generally, a serving of creamy pesto shrimp is very low in carbs—often around 4–6 net grams per serving—assuming keto-friendly pesto.
Can I meal prep this?
Sort of.
Cook the sauce and shrimp just until done, cool, and store separately from your veggie base. Reheat gently and combine right before eating to keep the shrimp tender.
What if I don’t like shrimp?
Use chicken, turkey, or even tofu if you’re flexible on strict keto. Adjust cook times and seasonings to match your protein choice.
Do I have to use lemon?
You don’t have to, but it makes a big difference.
The acid brightens the rich sauce and balances the pesto. Even a small squeeze helps.
Final Thoughts
Keto Shrimp with Creamy Pesto is the kind of meal that proves fast food can still feel special. With a short ingredient list and bold flavors, it’s perfect for busy nights or last-minute guests.
Keep good pesto on hand, buy a bag of frozen shrimp, and you’re never far from a satisfying, low-carb dinner. Add a squeeze of lemon, shower with basil, and enjoy every creamy bite.
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