Vegetarian Clam Chowder Recipe: Creamy and Delicious Guide

Updated On: October 4, 2025

If you’re craving the comforting richness of traditional clam chowder but want to keep things vegetarian, this vegetarian clam chowder recipe is just what you need. Packed with hearty vegetables and infused with the briny flavor of seaweed to mimic the essence of clams, this chowder delivers all the cozy, creamy goodness without any seafood.

It’s perfect for chilly evenings or when you want a satisfying bowl of soup that’s both delicious and meat-free.

This recipe is not only easy to make but also uses accessible ingredients that bring out deep, layered flavors. The creamy texture, combined with the subtle oceanic notes, makes it a crowd-pleaser for vegetarians and seafood lovers alike.

Plus, it’s a fantastic way to enjoy a classic with a plant-based twist. Whether you’re a seasoned vegetarian or just looking to reduce meat in your diet, this chowder will quickly become a favorite.

Why You’ll Love This Recipe

This vegetarian clam chowder offers a perfect balance of creaminess, texture, and flavor without compromising on the classic chowder experience. Here’s why it stands out:

  • Plant-based and packed with nutrients: Loaded with potatoes, corn, celery, and carrots, it’s a wholesome meal.
  • Umami-rich flavor: Using seaweed and mushrooms adds a savory depth, replicating the taste of clams.
  • Comfort food for all seasons: Warm and hearty, it’s perfect for chilly days but light enough for any time.
  • Easy to customize: You can make it vegan or gluten-free with simple substitutions.
  • Great for meal prep: It stores well and tastes even better the next day.

Ingredients

  • 2 tablespoons olive oil
  • 1 medium onion, finely chopped
  • 2 cloves garlic, minced
  • 2 stalks celery, diced
  • 2 medium carrots, diced
  • 3 medium potatoes, peeled and cubed
  • 1 cup corn kernels (fresh or frozen)
  • 4 cups vegetable broth
  • 1 sheet dried kombu seaweed or 1 teaspoon kelp powder (for umami sea flavor)
  • 1 cup oyster mushrooms, chopped (to mimic clam texture)
  • 1 cup unsweetened plant-based milk (oat or cashew milk works great)
  • 2 tablespoons all-purpose flour (or gluten-free flour)
  • 2 tablespoons vegan butter or olive oil
  • 1 teaspoon fresh thyme or ½ teaspoon dried thyme
  • 1 teaspoon smoked paprika
  • Salt and black pepper, to taste
  • Fresh parsley, chopped for garnish
  • Lemon wedges, for serving (optional)

Equipment

  • Large pot or Dutch oven
  • Wooden spoon or spatula
  • Knife and cutting board
  • Measuring cups and spoons
  • Whisk
  • Ladle
  • Soup bowls for serving

Instructions

  1. Prepare the base: Heat the olive oil in a large pot over medium heat. Add the chopped onion and sauté until translucent, about 5 minutes.
  2. Add garlic, celery, and carrots: Stir in the minced garlic, diced celery, and carrots. Cook for another 5 minutes, stirring occasionally, until vegetables soften.
  3. Add potatoes and broth: Toss in the cubed potatoes, corn kernels, and pour in the vegetable broth. Add the dried kombu seaweed sheet. Bring the mixture to a boil, then reduce heat and simmer for 15-20 minutes, or until potatoes are tender.
  4. Prepare the mushroom “clams”: While the soup simmers, heat a small pan over medium heat with a bit of olive oil. Add the chopped oyster mushrooms and sauté until browned and slightly crispy around edges, about 5-7 minutes. Set aside.
  5. Make the chowder base: In a separate small saucepan, melt the vegan butter over medium heat. Whisk in the flour to create a roux. Cook for 2 minutes, whisking constantly, to remove the raw flour taste.
  6. Add plant-based milk: Slowly whisk in the plant-based milk, making sure no lumps form. Cook until the mixture thickens, about 3-5 minutes.
  7. Combine and season: Remove the kombu seaweed sheet from the soup. Pour the thickened milk mixture into the soup pot. Stir well to combine, then add thyme, smoked paprika, salt, and black pepper.
  8. Add mushrooms: Stir in the sautéed oyster mushrooms to mimic the clam texture and flavor.
  9. Simmer and adjust: Let the chowder simmer for another 5 minutes to blend all flavors. Taste and adjust seasoning as needed.
  10. Serve: Ladle the chowder into bowls, garnish with fresh parsley, and serve with lemon wedges on the side for a bright finish.

Tips & Variations

“For that authentic seafood flavor without clams, don’t skip the kombu seaweed or kelp powder—it’s the secret ingredient that brings the ocean to your bowl!”

  • Make it vegan: Use vegan butter and plant-based milk like almond or oat milk.
  • Gluten-free option: Substitute all-purpose flour with a gluten-free flour blend or cornstarch slurry.
  • Extra creaminess: Add ½ cup coconut cream or cashew cream for richer texture.
  • Add more veggies: Try adding diced bell peppers or zucchini for extra color and nutrition.
  • Spice it up: Add a pinch of cayenne or red pepper flakes for a little heat.
  • Use fresh herbs: Fresh dill or chives make excellent garnishes alongside parsley.

Nutrition Facts

Nutrient Per Serving (approx.)
Calories 220 kcal
Protein 5 g
Fat 8 g
Carbohydrates 30 g
Fiber 5 g
Sodium 600 mg (varies by broth)
Vitamin A 25% DV
Vitamin C 20% DV

Serving Suggestions

This vegetarian clam chowder pairs beautifully with crusty bread or a warm baguette for dipping. For a lighter option, serve it alongside a crisp green salad dressed with lemon vinaigrette.

To turn your meal into a full feast, consider these complementary ideas:

Conclusion

This vegetarian clam chowder recipe proves that you don’t need seafood to enjoy a rich and flavorful chowder experience. By cleverly using seaweed and mushrooms, it captures the essence of the sea while remaining fully plant-based.

The combination of hearty vegetables, creamy broth, and umami-packed ingredients makes it comforting and satisfying for any occasion.

Whether you’re cooking for vegetarians, vegans, or simply looking to try something new, this chowder is a fantastic choice. Easy to prepare and versatile, it can be customized to suit your tastes or dietary needs.

Dive into this bowl of warmth and flavor, and enjoy a delicious twist on a classic favorite!

📖 Recipe Card: Vegetarian Clam Chowder

Description: A creamy, comforting chowder that mimics traditional clam chowder using mushrooms and seaweed for a seafood flavor. Perfect for a hearty vegetarian meal.

Prep Time: PT15M
Cook Time: PT30M
Total Time: PT45M

Servings: 4 servings

Ingredients

  • 2 tablespoons olive oil
  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 3 cups diced potatoes
  • 1 cup diced celery
  • 8 ounces oyster mushrooms, chopped
  • 4 cups vegetable broth
  • 1 sheet nori seaweed, torn into small pieces
  • 1 cup corn kernels (fresh or frozen)
  • 1 cup unsweetened almond milk
  • 1/2 cup coconut cream
  • Salt and black pepper to taste
  • 1 teaspoon dried thyme

Instructions

  1. Heat olive oil in a large pot over medium heat.
  2. Add onion, garlic, and celery; sauté until soft.
  3. Add mushrooms and cook until browned.
  4. Stir in potatoes, vegetable broth, nori, corn, and thyme.
  5. Bring to a boil, then reduce heat and simmer for 20 minutes until potatoes are tender.
  6. Stir in almond milk and coconut cream; heat through without boiling.
  7. Season with salt and pepper to taste.
  8. Serve hot with crusty bread.

Nutrition: Calories: 250 kcal | Protein: 6 g | Fat: 12 g | Carbs: 30 g

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Marta K

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