Cheese-Stuffed Pork Tenderloin with Garlic Butter Sauce

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A juicy pork tenderloin stuffed with sharp cheddar and spinach, roasted to perfection and finished with a rich garlic butter sauce. This american-inspired keto (keto, gluten free) ready in about 50 minutes blends trimmed pork tenderloin, shredded sharp cheddar cheese, chopped fresh spinach into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 520 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. 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 520 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. Butterfly 1.5 lbs pork tenderloin by slicing lengthwise almost through, then open flat. Season inside and outside with 1 tsp salt and 1/2 tsp black pepper.
  2. Step 2: Evenly spread 1 cup chopped fresh spinach and 4 oz shredded sharp cheddar cheese over the inside of the pork. Roll tightly and secure with kitchen twine every 2 inches.
  3. Step 3: Heat 2 tbsp olive oil in an oven-safe skillet over medium-high heat. Sear the pork roll on all sides for 3-4 minutes until golden brown.
  4. Step 4: Transfer skillet to oven and roast pork for 20-25 minutes until internal temperature reaches 145°F. Remove pork and tent with foil to rest.
  5. Step 5: In the same skillet, melt 4 tbsp unsalted butter over medium heat. Add 3 minced garlic cloves and 1 tsp fresh thyme leaves, cooking for 1-2 minutes until fragrant. Stir in 1 tbsp fresh lemon juice, then pour sauce over sliced pork before serving.

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Frequently asked questions

How long does Cheese-Stuffed Pork Tenderloin with Garlic Butter Sauce take to make?

Total time is about 50 minutes (15 min prep + 35 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Cheese-Stuffed Pork Tenderloin with Garlic Butter Sauce?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Cheese-Stuffed Pork Tenderloin with Garlic Butter Sauce?

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 Cheese-Stuffed Pork Tenderloin with Garlic Butter Sauce 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 Cheese-Stuffed Pork Tenderloin with Garlic Butter Sauce keto?

Yes — this recipe is tagged keto, 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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