One-Pan Roasted Chicken with Mushrooms and Cauliflower Rice

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

Juicy roasted chicken thighs with earthy mushrooms served over fluffy cauliflower rice, all cooked together on one sheet pan for easy cleanup and a Whole30-approved meal. This american-inspired whole30 (gluten free) ready in about 50 minutes pairs bone-in skin-on chicken thighs, cauliflower rice, sliced mushrooms for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 calories and feeds 4, 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.

Prep: 15 min Cook: 35 min Serves 4 American cuisine 420 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 425°F. Pat 6 bone-in skin-on chicken thighs dry with paper towels.
  2. Step 2: In a small bowl, combine 1 teaspoon garlic powder, 1 teaspoon smoked paprika, 1/2 teaspoon dried thyme, 1 1/2 teaspoons sea salt, and 1 teaspoon black pepper.
  3. Step 3: Rub 2 tablespoons olive oil and the spice mixture evenly over the chicken thighs.
  4. Step 4: On a large rimmed baking sheet, spread 4 cups cauliflower rice in an even layer. Drizzle with remaining 2 tablespoons olive oil and sprinkle with sliced mushrooms (1.5 cups), tossing lightly to combine.
  5. Step 5: Nestle the seasoned chicken thighs skin side up on top of the cauliflower rice and mushrooms.
  6. Step 6: Roast in the preheated oven for 30-35 minutes until chicken skin is crispy and internal temperature reaches 165°F and cauliflower rice is tender.
  7. Step 7: Remove from oven and sprinkle 2 tablespoons chopped fresh parsley over the dish for a fresh finish. Let rest 5 minutes before serving.

Frequently asked questions

How long does One-Pan Roasted Chicken with Mushrooms and Cauliflower Rice take to make?

Total time is about 50 minutes (15 min prep + 35 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 One-Pan Roasted Chicken with Mushrooms and Cauliflower Rice?

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 rice from drying out.

Can I substitute ingredients in One-Pan Roasted Chicken with Mushrooms and Cauliflower Rice?

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 One-Pan Roasted Chicken with Mushrooms and Cauliflower Rice 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 One-Pan Roasted Chicken with Mushrooms and Cauliflower Rice whole30?

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

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