slow roasted lamb in a serving dish

Whether it’s a Sunday dinner or celebrating at the holidays serving lamb is a favorite in our house! For this Roasted Lamb in Red Sauce recipe, it only takes a few simple ingredients to turn a leg of lamb into a mouth-watering dish. Plus the leftovers are just as to die for as when it comes straight out of the oven

Typically when we cook lamb (legs or shanks) we either do a latholemono (lemon sauce) or a tomato-based sauce. And we’ve made it so many times but for some reason have yet to make a blog post about it! So we’re going to walk you through how we make Roasted Lamb in Red Sauce. The key to this recipe is really being patient and letting the oven do its magic until the lamb is so tender that it literally falls apart. Also, with the red sauce version, you don’t need to marinate the lamb ahead of time.

Ingredients

  • Leg of lamb (boneless or bone-in)
  • olive oil
  • garlic cloves
  • onions
  • 28oz can of organic diced tomatoes
  • 8oz can of organic tomato sauce
  • cumin
  • salt & pepper

How to make Roasted Lamb in Red Sauce

Preparing the lamb

You can use fresh or frozen leg of lamb. If you are using frozen lamb make sure you properly thaw it ahead of time. If the lamb has been in the refrigerator take it out before cooking to come to room temperature.

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Roasting the lamb

To start the roasting process we first need to brown the lamb. Add olive oil to the bottom of a glass pan, with a paring knife cut small slits in the lamb and place garlic cloves in the slits then season both sides of the lamb with salt and pepper. Add to a preheated 450 degree oven for 15 minutes. Then flip the lamb and cook for an additional 15 minutes. Remove from the oven and lower the heat to 325 degrees. 

leg of lamb after browning for 30 minutes in the oven

Add the sliced onions, diced tomatoes and tomato sauce around the lamb. Season with salt, pepper and cumin. Cover the lamb with a layer of parchment paper followed by a layer of aluminum foil and set it on the middle rack of the oven. 

browned leg of lamb with sliced onions and diced tomatoes

We like to check the lamb once every hour or so for a few reasons. The first is to make sure that the liquid does not overflow. When the onions and tomatoes break down a lot of liquid can be created. If there is too much liquid, just remove some into a separate bowl and set aside. The other reason is to baste the lamb with the sauce. And finally, the last reason is to flip the lamb, you don’t need to do this every time but a few times over the course of the entire roasting process.

slow roasted lamb with onions and tomatoes

What to serve with Roasted Lamb in Red Sauce

This dish has SO much flavor, we like pairing it with simple sides like Lemon Potatoes to soak up all the delicious sauce and a Greek Peasant Salad (Horiatiki) for a fresh, crisp contrast! Really you can’t go wrong when picking a side to pair with Roasted Lamb in Red Sauce. A nice piece of crusty bread, fluffy rice, or quinoa would be great options too!

roasted lamb in a red sauce

Want more lamb recipes?

If you make this recipe be sure to let us know! We love hearing your interpretation and how they turned out. Tag us in your photos on Instagram. And stay connected to all things Heart Healthy Greek by following us on Facebook and Pinterest and by subscribing to our mailing list!

Roasted Lamb in Red Sauce

This lamb is so tender it will literally fall apart! It's slow-roasted in the oven with onions and tomatoes creating a delicious red sauce. Great for holidays, sunday dinner or any gathering with family and friends.
5 from 2 votes
Prep Time 10 minutes
Cook Time 7 hours
browning time 30 minutes
Total Time 7 hours 40 minutes
Course Main Dish
Cuisine Greek, Mediterranean
Servings 8 servings
Calories 286 kcal

Ingredients
  

  • 5-7 lbs leg of lamb (boneless or bone-in)
  • 1 tbsp olive oil
  • 5 cloves garlic
  • 2 large onions sliced
  • 28 oz can organic diced tomatoes
  • 8 oz can organic tomato sauce
  • 1 tsp cumin
  • Salt & pepper to taste

Instructions
 

  • Preheat the oven to 450 degrees. In a 9×13” roasting pan add olive oil.
  • Cut slits on the lamb and add garlic cloves. Next salt and pepper both sides of the lamb and add to the pan.
  • Cook for 15 minutes and then flip and cook for another 15 minutes to brown the lamb.
  • Remove the lamb from the oven and turn the oven down to 325 degrees. Add the sliced onions around the lamb followed by the diced tomatoes and tomato sauce.
  • Sprinkle it with salt, pepper and cumin. Cover with a layer of parchment paper and then tightly with aluminum foil. Add to the oven.
  • Check the lamb every hour to hour and a half and flip the lamb. If you notice that there is too much liquid remove some into a bowl and reserve for later. Make sure after you have checked the lamb that you put the aluminum foil tightly back on.

Nutrition

Calories: 286kcalCarbohydrates: 10gProtein: 38gFat: 10gSaturated Fat: 3gCholesterol: 114mgSodium: 403mgPotassium: 863mgFiber: 2gSugar: 5gVitamin A: 239IUVitamin C: 15mgCalcium: 60mgIron: 5mg
Keyword Greek, Greek Dish, Lamb, Mediterranean, Sauces
Tried this recipe?Let us know how it was!

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