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Keto Dinner

Italian-Style Pork Tenderloin

I love how this Italian-style pork tenderloin comes together with bold flavors from garlic, olives, and roasted peppers. It's a keto-friendly dinner that feels special but is simple to prepare, whether you choose the grill or oven.

15 min Prep time 30 min Cook time 45 min Total time 4 Servings 350 Calories
Italian-Style Pork Tenderloin

Ingredients

  • /2 pounds pork tenderloin
  • cloves garlic, minced
  • oil-cured black olives, pitted
  • teaspoon prepared mustard
  • salt and pepper to taste
  • red bell pepper, halved and deseeded
  • fresh mushrooms
  • onion, thinly sliced
  • tablespoon browning sauce

Instructions

  1. Step 1

    Slice the pork tenderloin lengthwise to open it up. Spread the mustard, minced garlic, and chopped olives inside. Season with salt and pepper, then tie the loin into a roll at 1-inch intervals. Refrigerate and marinate for 24 hours to let those flavors meld. When ready to cook, if grilling, prep your grill for high heat. Lay sliced red pepper on a large piece of heavy-duty foil, place the marinated loin on top, brush with browning sauce, and add onions and mushrooms. Seal the foil into a tent. Grill for about 30 minutes until the internal temperature reaches 160°F. Let it rest 10 minutes before slicing. For baking, preheat the oven to 375°F. Arrange the red pepper in a roasting pan, top with the loin, brush with browning sauce, and add onions and mushrooms. Cover and bake for 30 minutes or until 160°F is reached. Rest for 10 minutes. I find the foil tent on the grill keeps the pork juicy and infuses it with smoky sweetness from the peppers.

Chef's Tip

I always warm the mustard slightly with a touch of olive oil before spreading to make it easier. Also, let the tenderloin come to room temperature before cooking for more even doneness.

Storage Tips

Store leftovers in an airtight container in the fridge for up to 4 days. Reheat gently in a covered skillet with a splash of broth to keep it moist.

Variation Tips

Try swapping the black olives for green olives or adding capers for extra brininess. For a creamy twist, serve with a dollop of garlic aioli or a side of roasted cauliflower mash.

Frequently Asked Questions