Slow Roasted Leg Lamb

Golden-brown Slow Roasted Leg of Lamb with Lemon and Oregano rests beside tender roasted potatoes and carrots. Save
Golden-brown Slow Roasted Leg of Lamb with Lemon and Oregano rests beside tender roasted potatoes and carrots. | cookingwithdarlene.com

This Mediterranean-inspired slow roasted leg of lamb is flavored with fresh lemon zest and juice, aromatic oregano, and garlic. The lamb is marinated and slow cooked to achieve tender, flavorful meat with a golden crust. Surrounding baby potatoes, onions, and carrots absorb the pan juices for a hearty, balanced dish. Perfect for special occasions or a relaxed Sunday dinner, the lamb rests before carving to retain juiciness and is complemented by optional broth and white wine for depth.

The first time I slow-roasted a leg of lamb, my apartment smelled like a Greek taverna for three days straight. My neighbor actually knocked on my door to ask what I was cooking. Thats the power of lemon and oregano working their way through rendered fat. Now its my go-to when I want to make something that feels like a celebration without needing much hands-on effort.

I made this for Easter Sunday a few years back when my family came over. My aunt whos usually picky about lamb being gamey went back for thirds. Theres something about that combination of bright lemon cutting through rich meat that just works. The leftovers made the best sandwiches Ive ever had the next morning.

Ingredients

  • Bone-in leg of lamb: The bone adds incredible flavor and helps keep the meat moist during those long hours of cooking
  • Garlic and lemon: This classic Mediterranean pairing cuts through the richness and brightens every bite
  • Fresh oregano: Earthy and aromatic it transforms into something completely different when slow-roasted
  • Olive oil: Helps the marinade penetrate and creates that gorgeous golden crust
  • Baby potatoes and root vegetables: They cook alongside the lamb absorbing all those rendered juices and becoming almost candy-sweet
  • Broth and wine: Creates steam to keep everything moist while building a flavorful base for pan juices

Instructions

Prep your lamb and oven:
Preheat your oven to 150°C (300°F) and pat the lamb completely dry with paper towels for better browning. Place it in a large roasting pan fat side up.
Make the aromatic marinade:
Mix together the minced garlic lemon zest and juice chopped oregano olive oil salt and pepper until you have a fragrant paste.
Massage the flavors in:
Rub that marinade all over the lamb using your fingers to work it into any natural crevices. Take your time here good things come to those who massage their meat.
Surround with vegetables:
Scatter the halved potatoes onion wedges and carrot chunks around the lamb like a comfortable vegetable blanket.
Add moisture for the long cook:
Pour the broth and wine around the vegetables and meat creating a shallow bath that will steam everything into tenderness.
The long slow roast:
Cover the pan tightly with foil and roast for 2.5 hours. Walk away pour some wine maybe call your mom the oven does all the work.
Create the golden crust:
Remove the foil crank the heat to 200°C (400°F) and roast uncovered for 30 more minutes until youve got gorgeous caramelized edges.
The resting moment:
Let the lamb rest loosely covered for 15 minutes before carving. This is not optional its the difference between juicy meat and juice all over your cutting board.
A perfectly sliced piece of Slow Roasted Leg of Lamb with Lemon and Oregano reveals juicy pink meat. Save
A perfectly sliced piece of Slow Roasted Leg of Lamb with Lemon and Oregano reveals juicy pink meat. | cookingwithdarlene.com

This recipe has become my Easter tradition but Ive also made it for random Sunday dinners just because. Something about a whole leg of lamb feels special regardless of the occasion. My partner says the house smells like our favorite restaurant in Santorini when this is cooking.

Making It Ahead

You can rub the marinade on the lamb up to 24 hours ahead and let it sit in the refrigerator. The flavors penetrate even deeper and youll feel incredibly organized come cooking time. Just bring it to room temperature for an hour before roasting.

Doneness Temperature Guide

Everyone has their preference for lamb doneness and thats completely valid. Use a meat thermometer inserted into the thickest part without hitting bone. Medium-rare reaches 130-135°F medium hits 140-145°F and well-done is 155°F and up.

Serving Suggestions

A crisp Greek salad with feta and olives cuts through the richness perfectly. Some warm pita bread for soaking up pan juices is never a mistake. And if you want to lean into the Mediterranean theme tzatziki sauce on the side is delightful.

  • A bold red wine like Rioja or Cabernet Sauvignon pairs beautifully
  • Leftovers make incredible gyros or shepherds pie the next day
  • Save those pan juices theyre liquid gold for reheating
A rustic platter featuring Slow Roasted Leg of Lamb with Lemon and Oregano, surrounded by lemon wedges and fresh herbs. Save
A rustic platter featuring Slow Roasted Leg of Lamb with Lemon and Oregano, surrounded by lemon wedges and fresh herbs. | cookingwithdarlene.com

Theres something deeply satisfying about serving a roast that looks impressive but was mostly hands-off cooking. Hope this becomes a staple in your home like it has in mine.

Recipe Questions & Answers

Pat the lamb dry and massage the marinade deeply into incisions to infuse flavor before slow roasting.

Baby potatoes, onions, and carrots are arranged around the lamb to roast alongside and soak up juices.

Yes, roast covered at low heat for tenderness, then increase temperature uncovered to crisp the surface.

Low-sodium broth and optional dry white wine are poured around vegetables to add flavor and moisture.

Rosemary or thyme can replace oregano for varied herbal notes.

Rest the lamb loosely covered for 15 minutes to allow juices to redistribute.

Slow Roasted Leg Lamb

Tender slow-roasted leg of lamb seasoned with lemon, oregano, garlic, and served with roasted vegetables.

Prep 20m
Cook 180m
Total 200m
Servings 6
Difficulty Medium

Ingredients

Meat

  • 1 bone-in leg of lamb (approximately 4.5 lbs), trimmed of excess fat

Marinade

  • 4 cloves garlic, minced
  • Zest and juice of 2 lemons
  • 2 tablespoons fresh oregano leaves, chopped (or 2 teaspoons dried oregano)
  • 3 tablespoons olive oil
  • 1 tablespoon sea salt
  • 1 teaspoon freshly ground black pepper

Vegetables

  • 2.2 lbs baby potatoes, halved
  • 2 large onions, cut into thick wedges
  • 2 carrots, cut into large chunks

Liquids

  • 1 cup low-sodium chicken or vegetable broth
  • 1/2 cup dry white wine (optional)

Instructions

1
Prepare the Oven and Lamb: Preheat oven to 300°F. Thoroughly pat the lamb dry with paper towels and place in a large roasting pan.
2
Create the Marinade: In a small bowl, whisk together garlic, lemon zest, lemon juice, oregano, olive oil, salt, and pepper until well combined.
3
Season the Lamb: Rub the marinade thoroughly over the entire surface of the lamb. Make shallow incisions in the meat and massage the marinade into these cuts for deeper flavor penetration.
4
Arrange Vegetables: Place potatoes, onions, and carrots around the lamb in the roasting pan, distributing them evenly.
5
Add Cooking Liquids: Pour broth and wine (if using) into the pan around the vegetables and meat.
6
Initial Roasting: Cover the roasting pan tightly with aluminum foil. Roast for 2.5 hours.
7
Finish and Brown: Remove foil and increase oven temperature to 400°F. Roast uncovered for 30 minutes until the lamb develops a golden, caramelized exterior and reaches desired tenderness.
8
Rest Before Serving: Transfer lamb to a cutting board and let rest, loosely covered with foil, for 15 minutes before carving. Serve with roasted vegetables and pan juices.
Additional Information

Equipment Needed

  • Large roasting pan
  • Sharp knife
  • Small mixing bowl
  • Measuring cups and spoons
  • Aluminum foil

Nutrition (Per Serving)

Calories 520
Protein 43g
Carbs 23g
Fat 28g
Darlene Bennett

Sharing simple recipes and real-life cooking tips for home cooks.