Roasted Spiced Cauliflower and Carrot Soup
A velvety smooth Whole30 soup with roasted cauliflower and carrots, enhanced with warming turmeric and cumin for a comforting meal. This mediterranean-inspired whole30 (vegan) ready in about 50 minutes pairs cauliflower florets, carrots, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 150 calories and feeds 6, so it slots cleanly into a Whole30 week and pairs well with roasted sweet potato or a simple olive-oil salad. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 4 cups cauliflower florets
- 3 medium, peeled and chopped carrots
- 3 tbsp olive oil
- 1 medium, diced yellow onion
- 4 minced garlic cloves
- 1 tsp ground turmeric
- 1 tsp ground cumin
- 1 1/2 tsp sea salt
- 3/4 tsp black pepper
- 4 cups vegetable broth
- 1 tbsp fresh lemon juice
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Instructions
- Step 1: Preheat oven to 425°F. Toss 4 cups cauliflower florets and 3 chopped medium carrots with 2 tbsp olive oil, 1 tsp sea salt, and 1/2 tsp black pepper on a baking sheet. Roast for 25 minutes until tender and caramelized at edges.
- Step 2: While vegetables roast, heat 1 tbsp olive oil in a large pot over medium heat. Add 1 medium diced yellow onion and 4 minced garlic cloves, cooking for 5 minutes until softened and fragrant.
- Step 3: Stir in 1 tsp ground turmeric, 1 tsp ground cumin, 1/2 tsp sea salt, and 1/4 tsp black pepper, cooking for 1 minute to bloom the spices.
- Step 4: Add roasted cauliflower and carrots to the pot along with 4 cups vegetable broth. Bring to a simmer and cook for 10 minutes.
- Step 5: Use an immersion blender to puree the soup until smooth and creamy. Stir in 1 tbsp fresh lemon juice, adjust seasoning to taste, and serve warm.
Frequently asked questions
How long does Roasted Spiced Cauliflower and Carrot Soup take to make?
Total time is about 50 minutes (10 min prep + 40 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Roasted Spiced Cauliflower and Carrot Soup?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep cauliflower florets from drying out.
Can I substitute ingredients in Roasted Spiced Cauliflower and Carrot Soup?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Roasted Spiced Cauliflower and Carrot Soup for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
Is Roasted Spiced Cauliflower and Carrot Soup whole30?
Yes — this recipe is tagged whole30, vegan, gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
What others are saying
- ★★★★★
Loved the flavors! My whole family devoured it.
- ★★★★★
Perfect for a cold evening, and so healthy!
- ★★★★☆
The spices were great, but it was slightly bland for my taste.









