Broccoli and Mushroom Soup with Parmesan

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A creamy, low-carb soup featuring fresh broccoli, earthy mushrooms, and a subtle Parmesan finish. This american-inspired keto ready in about 40 minutes pairs chopped into florets broccoli, sliced mushrooms, diced onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. 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.

Prep: 15 min Cook: 25 min Serves 4 American cuisine 280 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat olive oil in a large pot over medium heat. Add diced onion and cook until soft, about 5 minutes.
  2. Step 2: Add sliced mushrooms and minced garlic, and cook for 3 minutes until mushrooms are tender.
  3. Step 3: Stir in chopped broccoli, 3 cups chicken broth, 1/4 tsp salt, and 1/8 tsp black pepper. Bring to a simmer and cook for 15 minutes until broccoli is tender.
  4. Step 4: Use an immersion blender to puree the soup until smooth (or transfer to a blender in batches).
  5. Step 5: Stir in heavy cream and grated Parmesan, then cook for 2 more minutes until heated through. Season with remaining salt and pepper.

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Frequently asked questions

How long does Broccoli and Mushroom Soup with Parmesan take to make?

Total time is about 40 minutes (15 min prep + 25 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 Broccoli and Mushroom Soup with Parmesan?

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 chopped into florets broccoli from drying out.

Can I substitute ingredients in Broccoli and Mushroom Soup with Parmesan?

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 Broccoli and Mushroom Soup with Parmesan for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). 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.

What goes well with Broccoli and Mushroom Soup with Parmesan?

American keto like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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