Baked Italian Herb-Crusted Pork Tenderloin with Roasted Garlic Mashed Potatoes

By AislePrompt Editorial · Published 2026-08-05 · Updated 2026-08-05

Tender pork tenderloin coated in a fragrant blend of Italian herbs, oven-baked to juicy perfection and served alongside creamy roasted garlic mashed potatoes. This Italian-inspired pork recipe, ready in about 55 minutes, pairs pork tenderloin, olive oil, dried basil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 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.

Ingredients

• 1.5 lbs pork tenderloin
• 2 tbsp olive oil
• 1 tsp dried basil
• 1 tsp dried oregano
• 1 tsp garlic powder
• 1 tsp salt
• 1/2 tsp black pepper
• 2 lbs russet potatoes, peeled and quartered
• 6 whole garlic cloves
• 4 tbsp unsalted butter
• 1/2 cup milk
• 2 tbsp fresh parsley, chopped

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Instructions

1. Step 1: Preheat oven to 400°F. In a small bowl, mix 2 tbsp olive oil, 1 tsp dried basil, 1 tsp dried oregano, 1 tsp garlic powder, 1 tsp salt, and 1/2 tsp black pepper to form an herb paste. Rub this mixture evenly over 1.5 lbs pork tenderloin.
2. Step 2: Place the pork on a rimmed baking sheet and roast in the preheated oven for 25-30 minutes until the internal temperature reaches 145°F. Remove from oven and let rest for 10 minutes before slicing.
3. Step 3: Meanwhile, place 2 lbs peeled and quartered russet potatoes and 6 whole garlic cloves into a large pot of salted water. Bring to a boil and cook for 15-20 minutes until potatoes are fork-tender.
4. Step 4: Drain potatoes and garlic, then mash them with 4 tbsp unsalted butter and 1/2 cup warm milk until smooth and creamy. Season with salt to taste.
5. Step 5: Serve slices of the pork tenderloin alongside generous portions of roasted garlic mashed potatoes, garnished with 2 tbsp chopped fresh parsley.