Roasted Cauliflower Soup With Mushrooms

Marsha Rickles - The Upside Blog

by | Updated: December 10th, 2025

Creamy, cozy and deeply flavorful, this roasted cauliflower soup with mushrooms transforms simple pantry ingredients into an elevated, comforting bowl of goodness. Roasted cauliflower and onion bring natural sweetness and depth, while toasted cashews add richness without dairy. Finished with savory sautéed mushrooms, fresh chives and a bright squeeze of lemon, this soup is perfect for chilly nights, light lunches or clean, plant-based comfort any time of year.

Roasted Cauliflower Soup With Mushrooms on White Background

Roasted Cauliflower Soup With Mushrooms on White Background
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Roasted Cauliflower Soup With Mushrooms

Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings 6
Calories 175 kcal

Ingredients

Instructions

  1. Preheat oven to 375 degrees F.
  2. Spray olive oil on baking pan large enough to hold cauliflower florets and onion chunks without crowding.
  3. Place cauliflower and onion on pan and season lightly with salt, pepper and one teaspoon of garlic powder
  4. Drizzle vegetables with 2 tablespoons olive oil. Roast about 30-45 minutes until cauliflower is soft and lightly browned
  5. Roast cashews in separate pan until toasted while veggies are cooking. Check often so they do not burn.
  6. Remove vegetables and cashews from oven.
  7. Place cauliflower and onions in pot and cover with vegetable stock.
  8. Add thyme and second teaspoon of garlic powder to stock.
  9. When vegetables are soft, remove from heat. With immersion blender, blend ingredients until creamy. If too thick, add water.
  10. Add salt and pepper, to taste.
  11. Sauté mushrooms in remaining olive oil until browned. Reserve for garnish.
  12. Break cashews into pieces and reserve for garnish.
  13. To serve, ladle soup into bowls. Top with mushrooms and cashews and sprinkle with chives.
  14. Squeeze lemon on top for brightness.

Recipe Notes

Get these ingredients and more at Vitacost.

Nutrition Facts
Roasted Cauliflower Soup With Mushrooms
Amount Per Serving
Calories 175 Calories from Fat 117
% Daily Value*
Fat 13g20%
Saturated Fat 2g10%
Polyunsaturated Fat 2g
Monounsaturated Fat 8g
Sodium 973mg41%
Potassium 448mg13%
Carbohydrates 14g5%
Fiber 3g12%
Sugar 5g6%
Protein 5g10%
Vitamin A 532IU11%
Vitamin C 48mg58%
Calcium 45mg5%
Iron 2mg11%
* Percent Daily Values are based on a 2000 calorie diet.

Featured Products

California Olive Ranch Non-GMO Extra Virgin Olive Oil -- 25.4 fl oz
Simply Organic Garlic Powder -- 3.64 oz
Pacific Foods Organic Vegetable Broth Low Sodium -- 32 fl oz