Stir-Fried Cauliflower Rice with Mushrooms and Spinach

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

A vibrant Whole30 stir-fry featuring cauliflower rice, earthy mushrooms, and fresh spinach tossed with garlic and coconut aminos for a flavorful side or light meal. This whole30-inspired vegetarian (whole30, vegetarian) ready in about 25 minutes pairs cauliflower, riced, sliced cremini mushrooms, packed fresh spinach for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 120 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: 10 min Cook: 15 min Serves 4 Whole30 cuisine 120 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat 2 tbsp olive oil in a large skillet or wok over medium-high heat. Add 3 minced garlic cloves and sauté for 30 seconds until fragrant.
  2. Step 2: Add 8 oz sliced cremini mushrooms and cook for 5 minutes, stirring frequently, until the mushrooms release liquid and begin to brown.
  3. Step 3: Stir in 4 cups riced cauliflower and 1/2 tsp sea salt, cooking for 4-5 minutes until the cauliflower softens but retains slight bite.
  4. Step 4: Add 3 cups packed fresh spinach and 2 tbsp coconut aminos, stirring until the spinach wilts, about 2 minutes.
  5. Step 5: Season with 1/4 tsp black pepper and toss in 2 thinly sliced green onions. Remove from heat and serve warm as a nutritious Whole30 side or light main dish.

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Frequently asked questions

How long does Stir-Fried Cauliflower Rice with Mushrooms and Spinach take to make?

Total time is about 25 minutes (10 min prep + 15 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 Stir-Fried Cauliflower Rice with Mushrooms and Spinach?

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, riced from drying out.

Can I substitute ingredients in Stir-Fried Cauliflower Rice with Mushrooms and Spinach?

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 Stir-Fried Cauliflower Rice with Mushrooms and Spinach 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.

Is Stir-Fried Cauliflower Rice with Mushrooms and Spinach whole30?

Yes — this recipe is tagged whole30, vegetarian, low carb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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