Herb-Roasted Pork Tenderloin with Cauliflower Mash

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Juicy pork tenderloin roasted with fresh herbs and garlic, paired with creamy Whole30 cauliflower mash for a satisfying gluten-free dinner. This american-inspired whole30 (whole30, gluten free) ready in about 40 minutes pairs pork tenderloin, olive oil, chopped fresh rosemary for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 3, 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: 30 min Serves 3 American cuisine 350 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. In a small bowl, mix 2 tbsp olive oil, 1 tbsp chopped fresh rosemary, 1 tbsp chopped fresh thyme, 4 minced garlic cloves, 1 tsp sea salt, and 1/2 tsp black pepper. Rub this herb mixture all over 1 lb pork tenderloin.
  2. Step 2: Place pork on a roasting pan and roast for 20-25 minutes until internal temperature reaches 145°F. Remove and let rest for 10 minutes before slicing.
  3. Step 3: While pork roasts, steam 4 cups cauliflower florets until very tender, about 10-12 minutes.
  4. Step 4: Transfer steamed cauliflower to a food processor. Add 1/4 cup full-fat canned coconut milk and 2 tbsp nutritional yeast (if using). Blend until smooth and creamy. Adjust seasoning with salt and pepper if needed.
  5. Step 5: Serve sliced pork tenderloin alongside cauliflower mash.

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Frequently asked questions

How long does Herb-Roasted Pork Tenderloin with Cauliflower Mash take to make?

Total time is about 40 minutes (10 min prep + 30 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 Herb-Roasted Pork Tenderloin with Cauliflower Mash?

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 pork tenderloin from drying out.

Can I substitute ingredients in Herb-Roasted Pork Tenderloin with Cauliflower Mash?

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 Herb-Roasted Pork Tenderloin with Cauliflower Mash for a different number of people?

The recipe is written for 3 servings. Multiply each ingredient by (your serving target / 3). 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 Herb-Roasted Pork Tenderloin with Cauliflower Mash whole30?

Yes — this recipe is tagged whole30, gluten free, dairy 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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