Kelp Noodles
Table of Contents
Are Kelp Noodles the Smartest Swap for Pasta?
Did you know that a cup of cooked spaghetti has around 40 grams of carbs, while kelp noodles have only about 1 to 2 grams per serving? Many people believe that going keto means saying goodbye to a big, comforting bowl of noodles. That simply isn’t true. This kelp noodles recipe gives you a silky, garlicky, savory dinner in about 20 minutes, with no boiling water and no blood sugar spike.
Made from edible brown seaweed, water, and sodium alginate, these noodles are crunchy straight from the bag and turn tender once they soak up warm sauce. Their flavor is mild and clean, making them a blank canvas for bold ingredients like garlic, ginger, and butter. If zucchini noodles or shirataki left you disappointed, this seaweed noodle dish may change your mind. You can also compare it with our shirataki noodles recipe to find your favorite low-carb noodle.
Ingredients for Kelp Noodles Recipe

- 1 package (12 oz / 340 g) kelp noodles: crisp, translucent, and slightly springy
- 1 lb (450 g) large shrimp, peeled and deveined: sweet and juicy when seared
- 2 tbsp butter or ghee: gives a rich, nutty base
- 4 garlic cloves, minced: sharp and fragrant
- 1 tbsp fresh ginger, grated: bright and warm
- 2 cups baby spinach: soft, earthy greens
- 1 tbsp coconut aminos or soy sauce: a salty, savory depth
- 1 tsp toasted sesame oil: a deep, toasty aroma
- Juice of 1/2 lemon: fresh and tangy
- 1/4 tsp red pepper flakes: a gentle kick
- 2 green onions, sliced: a fresh, crunchy finish
- Salt and black pepper to taste
Easy substitutions:
- Shrimp: chicken thigh strips, seared tofu, or thin steak slices
- Butter: olive oil or avocado oil
- Baby spinach: bok choy, kale, or zucchini ribbons
- Coconut aminos: tamari for a stronger flavor
Timing
- Prep time: 10 minutes
- Cook time: 10 minutes
- Total time: 20 minutes
That is about 33% faster than a typical 30-minute pasta night, and you never wait for a pot of water to boil.
Step-by-Step Instructions
Step 1: Rinse and Soften the Kelp Noodles
Open the package, drain the liquid, and rinse the noodles under cold water for about 30 seconds. This removes the mild ocean scent. Then soak them in warm water with a squeeze of lemon for 10 minutes. This simple tip softens kelp noodles and keeps the flavor clean. Drain well and pat dry.

Step 2: Prep Your Aromatics
While the noodles soak, mince the garlic, grate the ginger, and slice the green onions. Have everything ready next to the stove. This dish moves fast, and a prepped counter keeps you calm.
Step 3: Sear the Shrimp
Pat the shrimp very dry with a paper towel. Heat 1 tablespoon of butter in a large skillet over medium-high heat. Add the shrimp in a single layer and cook about 90 seconds per side until pink and lightly golden. Move them to a plate. Don’t overcrowd the pan, or the shrimp will steam instead of sear.
Step 4: Build the Sauce
Lower the heat to medium. Add the remaining butter, garlic, ginger, and red pepper flakes. Stir for 30 seconds until the kitchen smells amazing. Pour in the coconut aminos, sesame oil, and lemon juice, and let it bubble for a minute.
Step 5: Toss Everything Together
Add the drained kelp noodles and the spinach to the skillet. Toss with tongs for 3 to 4 minutes, until the spinach wilts and the noodles turn tender but still slightly crisp. Return the shrimp to the pan and toss again for 30 seconds.

Step 6: Taste, Season, and Serve
Taste and adjust with salt, pepper, or more lemon. Top with green onions and a few sesame seeds. Serve right away while the sauce is glossy and warm.
Nutritional Information
Kelp noodles are naturally very low in calories and carbs, which makes them a smart base for keto, low-carb, and gluten-free meals. Compared with wheat pasta, they contain a small fraction of the calories, plus trace iodine, calcium, and magnesium. Seaweed can be naturally high in iodine, so enjoy this dish as part of a varied diet. If you want to compare carb counts for pasta and other foods, the USDA FoodData Central database is a reliable place to look.
Approximate values per serving (makes 3 servings):
| Nutrient | Amount |
|---|---|
| Calories | 245 |
| Total fat | 12 g |
| Protein | 26 g |
| Total carbs | 6 g |
| Fiber | 2 g |
| Net carbs | 4 g |
| Sugar | 1 g |
These numbers are estimates. They vary by brand and ingredients, so check your labels if you track macros closely.
Healthier Alternatives for Kelp Noodles Recipe
This kelp noodles recipe adapts easily to different diets and goals:
- Dairy-free: Use olive oil or avocado oil instead of butter.
- Lower sodium: Use less coconut aminos and add more lemon and fresh herbs.
- Vegan: Swap shrimp for crispy tofu or sautéed mushrooms.
- More veggies: Add sliced bell pepper, broccoli florets, or shredded cabbage.
- Extra protein: Add a soft-boiled egg on top or use chicken and shrimp together.
- Spicy version: Add a spoonful of chili garlic sauce.
Serving Suggestions
Kelp noodles pair well with a crisp cucumber salad, a bowl of miso soup, or a simple side of steamed broccoli. For a restaurant feel, serve in a shallow bowl with lemon wedges, fresh cilantro, and a sprinkle of toasted sesame seeds.
For meal prep, divide into containers with extra greens. For a party, serve small portions in lettuce cups as a light appetizer. Hosting a bigger dinner? Serve a small portion alongside our chicken sorrentino for a hearty, crowd-pleasing table. Looking for more ideas? Browse all our keto dinner recipes for easy pairings.
Common Mistakes to Avoid with Kelp Noodles
- Skipping the rinse: The packing liquid has a briny smell. A quick rinse fixes it.
- Skipping the soak: Without the warm lemon soak, the noodles stay too firm. Ten minutes makes a big difference.
- Overcooking: Cooking too long makes them mushy. A few minutes in the pan is plenty.
- Watery sauce: Wet noodles dilute the sauce. Drain and pat them dry first.
- Crowding the shrimp: Too many shrimp in the pan means no sear. Cook in batches if needed.
- Under-seasoning: The noodles are mild, so taste and adjust at the end.
Storing Tips for the Recipe
- Fridge: Store leftovers in an airtight container for up to 2 days. The noodles will soften a little, which many people like.
- Reheating: Warm gently in a skillet with a splash of water or broth for 2 minutes. Avoid the microwave on high heat.
- Prep ahead: Soak and drain the noodles up to 24 hours ahead and keep them in the fridge. Mince the garlic and ginger the day before.
- Freezing: Not recommended, because the texture turns soft and watery.
- Unopened packages: Keep them in the pantry until the date on the label.
Conclusion
Low in carbs, quick, and full of flavor, this garlic shrimp seaweed noodle dinner proves keto never has to feel restrictive. You need only one pan and twenty minutes. Try it tonight, then leave a comment below, and subscribe to my blog for more easy keto recipes delivered.
FAQs
Do kelp noodles taste fishy?
No. Once rinsed and soaked, they taste very mild and take on the flavor of your sauce.
Is this recipe keto-friendly?
Yes. With about 4 grams of net carbs per serving, it fits easily into a keto or low-carb plan.
Do I need to cook the noodles?
They are safe to eat raw, but a few minutes in a warm pan makes them more tender.
Can I make this gluten-free?
Yes. The noodles are naturally gluten-free. Just use coconut aminos or tamari.
How do I make the noodles softer?
Soak them in warm water with lemon juice or a pinch of baking soda for 10 to 15 minutes.
Can I make it ahead?
Yes. Prep the noodles and aromatics the day before, then cook the dish fresh for the best texture.
Where can I buy them?
Look in the Asian foods aisle, health food stores, or online.
Kelp Noodles
Course: DinnerCuisine: Asian3
servings10
minutes10
minutes20
minutesAn easy kelp noodles recipe with garlic shrimp, spinach, and ginger. Low-carb, gluten-free, and ready in 20 minutes.
Ingredients
1 package (12 oz) kelp noodles
1 lb large shrimp, peeled and deveined
2 tbsp butter or ghee
4 garlic cloves, minced
1 tbsp fresh ginger, grated
2 cups baby spinach
1 tbsp coconut aminos
1 tsp toasted sesame oil
Juice of 1/2 lemon
1/4 tsp red pepper flakes
2 green onions, sliced
Salt and black pepper to taste
Directions
- Rinse and soften:
Drain and rinse the kelp noodles, then soak in warm lemon water for 10 minutes. Drain and pat dry. - Prep aromatics:
Mince the garlic, grate the ginger, and slice the green onions. - Sear the shrimp:
Cook shrimp in 1 tbsp butter over medium-high heat for about 90 seconds per side. Set aside. - Build the sauce:
Add butter, garlic, ginger, and pepper flakes. Stir 30 seconds, then add coconut aminos, sesame oil, and lemon juice. - Toss together:
Add noodles and spinach and toss for 3 to 4 minutes. Return the shrimp and toss for 30 seconds. - Season and serve:
Adjust salt, pepper, and lemon. Top with green onions and sesame seeds.
Nutrition Facts
1 servings per container
- Amount Per ServingCalories245
- % Daily Value *
- Total Fat
12g
16%
- Total Carbohydrate
6g
3%
- Dietary Fiber 2g 8%
- Total Sugars 1g
- Protein 26g 52%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.








