Italian Herb-Roasted Pork Tenderloin with Garlic Mashed Potatoes

By AislePrompt Editorial · Published 2026-04-26 · Updated 2026-04-26

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are developed and reviewed.

Succulent pork tenderloin rubbed with fresh herbs and roasted to perfection, paired with creamy garlic mashed potatoes. This Italian-inspired Easter recipe, ready in about 55 minutes, pairs pork tenderloin, fresh rosemary, fresh thyme for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 520 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: 40 min Serves 4 Italian cuisine 520 cal/serving

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Ingredients

1.5 lbs pork tenderloin
1 tbsp, finely chopped fresh rosemary
1 tbsp, finely chopped fresh thyme
4, minced garlic cloves
2 tbsp olive oil
1 1/2 tsp salt
1 tsp black pepper
2 lbs, peeled and quartered yellow potatoes
4 tbsp unsalted butter
1/2 cup whole milk
3, minced garlic cloves for potatoes

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Instructions

Step 1: Preheat oven to 400°F. In a small bowl, mix 1 tbsp chopped fresh rosemary, 1 tbsp chopped fresh thyme, 4 minced garlic cloves, 2 tbsp olive oil, 1 1/2 tsp salt, and 1 tsp black pepper to form a herb paste.
Step 2: Rub the herb mixture all over 1.5 lbs pork tenderloin and place on a roasting pan.
Step 3: Roast the pork in the preheated oven for 25-30 minutes until the internal temperature reaches 145°F. Remove and let rest for 10 minutes before slicing.
Step 4: Meanwhile, place 2 lbs peeled and quartered yellow potatoes in a large pot of salted water and bring to a boil. Cook for 15-20 minutes until very tender.
Step 5: Drain potatoes and return to the pot. Add 4 tbsp unsalted butter, 1/2 cup whole milk, and 3 minced garlic cloves. Mash with a potato masher until smooth and creamy.
Step 6: Season mashed potatoes with salt and pepper to taste, then serve alongside sliced pork tenderloin.