Roast leg of lamb with rosemary is a classic dish that brings out the best flavors of the meat. The combination of garlic and rosemary infuses the lamb with a fragrant aroma, while the olive oil helps to create a crispy, golden crust. This recipe is perfect for a special occasion or a Sunday family dinner.
If you don't usually cook with lamb, you might need to visit a butcher or a well-stocked supermarket to find a good quality leg of lamb. Fresh rosemary and garlic are essential for this recipe, so make sure to pick them up if you don't have them at home. Olive oil is a pantry staple, but ensure you have enough for the rub.

Ingredients For Roast Leg Of Lamb With Rosemary
Lamb: The main protein of the dish, a leg of lamb is tender and flavorful.
Garlic: Adds a pungent, aromatic flavor that pairs well with lamb.
Rosemary: A fragrant herb that enhances the taste of the lamb.
Olive oil: Helps to create a crispy crust and adds richness.
Salt: Enhances the natural flavors of the ingredients.
Black pepper: Adds a mild heat and depth to the seasoning.
Technique Tip for This Recipe
When making small incisions in the lamb, ensure they are deep enough to fully insert the garlic slices. This allows the garlic to infuse the meat with its flavor during roasting. Additionally, massaging the olive oil and rosemary mixture into the lamb helps to create a flavorful crust. For even cooking, let the lamb come to room temperature before placing it in the oven.
Suggested Side Dishes
Alternative Ingredients
leg of lamb - Substitute with pork shoulder: Pork shoulder provides a similar texture and richness, making it a good alternative for a roast.
leg of lamb - Substitute with beef chuck roast: Beef chuck roast is another hearty cut that can mimic the tenderness and flavor profile of lamb when roasted.
garlic - Substitute with shallots: Shallots offer a milder, slightly sweet flavor that can complement the dish similarly to garlic.
garlic - Substitute with onion powder: Onion powder can provide a similar depth of flavor in a more subtle form.
rosemary - Substitute with thyme: Thyme has a similar earthy and aromatic quality that can stand in for rosemary.
rosemary - Substitute with oregano: Oregano offers a robust flavor that can complement the lamb well, though it is slightly more pungent.
olive oil - Substitute with grapeseed oil: Grapeseed oil has a neutral flavor and high smoke point, making it a good alternative for roasting.
olive oil - Substitute with avocado oil: Avocado oil is another healthy oil with a high smoke point and a mild flavor.
salt - Substitute with soy sauce: Soy sauce can add a salty and umami flavor, though it will also add a different depth of flavor.
salt - Substitute with sea salt: Sea salt can provide a more nuanced flavor compared to regular table salt.
black pepper - Substitute with white pepper: White pepper offers a similar spiciness but with a slightly different flavor profile.
black pepper - Substitute with cayenne pepper: Cayenne pepper can add a bit of heat and spice, though it is more intense than black pepper.
Other Alternative Recipes Similar to This Dish
How to Store / Freeze This Dish
- Allow the roast leg of lamb to cool to room temperature before storing. This helps prevent condensation, which can make the meat soggy.
- Wrap the lamb tightly in aluminum foil or plastic wrap. Ensure there are no gaps to keep the meat fresh and prevent it from drying out.
- Place the wrapped lamb in an airtight container or a resealable freezer bag. This adds an extra layer of protection against freezer burn.
- Label the container or bag with the date and contents. This will help you keep track of how long the lamb has been stored.
- Store the lamb in the refrigerator if you plan to consume it within 3-4 days. For longer storage, place it in the freezer where it can last up to 3 months.
- When ready to reheat, thaw the lamb in the refrigerator overnight if frozen. This slow thawing process helps maintain the meat's texture and flavor.
- Reheat the lamb in a preheated oven at 325°F (165°C) until it reaches an internal temperature of 165°F (74°C). This ensures the meat is heated through without drying out.
- For a quicker option, slice the lamb and reheat in a microwave on medium power, covering it with a damp paper towel to retain moisture.
- Serve the reheated lamb with a fresh side of roasted vegetables or a green salad to complement the flavors and create a balanced meal.
How to Reheat Leftovers
Preheat your oven to 325°F (165°C). Place the leftover roast leg of lamb in a baking dish, cover it with aluminum foil to retain moisture, and heat for about 20-25 minutes or until warmed through.
For a quicker method, slice the lamb thinly and place the slices in a skillet with a splash of olive oil or broth. Heat over medium-low heat, turning occasionally, until the meat is warmed through.
If you prefer using a microwave, place the lamb slices on a microwave-safe plate, cover with a damp paper towel to keep it moist, and heat on medium power for 1-2 minutes. Check and stir halfway through to ensure even heating.
For a sous-vide approach, seal the lamb in a vacuum bag or a ziplock bag, removing as much air as possible. Submerge the bag in a water bath set to 140°F (60°C) and heat for about 30-45 minutes.
To add a bit of crispiness, you can reheat the lamb slices in an air fryer. Preheat the air fryer to 350°F (175°C), place the slices in the basket, and heat for 5-7 minutes, shaking the basket halfway through.
For a stovetop method, place the lamb slices in a pan with a bit of olive oil or butter. Cover the pan and heat over low to medium heat, turning occasionally, until the meat is warmed through.
Best Tools for Preparing This Recipe
Oven: Used to preheat and roast the lamb to the desired temperature.
Roasting pan: Holds the lamb while it roasts, allowing for even cooking and catching any drippings.
Sharp knife: Essential for making small incisions in the lamb to insert garlic slices.
Cutting board: Provides a stable surface for prepping the lamb and slicing garlic.
Meat thermometer: Ensures the lamb is cooked to the correct internal temperature of 145°F (63°C).
Small bowl: Used to mix the olive oil, rosemary, salt, and pepper before rubbing onto the lamb.
Tongs: Useful for handling the lamb without piercing it, which helps retain juices.
Aluminum foil: Can be used to tent the lamb while it rests, keeping it warm and allowing juices to redistribute.
Carving knife: Used to carve the lamb into slices after it has rested.
Serving platter: For presenting the beautifully roasted and carved lamb.
How to Save Time on Making This Recipe
Prepare ingredients ahead: Chop the garlic and rosemary the night before to save time on the day of cooking.
Use a meat thermometer: This ensures the lamb reaches the perfect internal temperature without constant checking.
Preheat the oven early: Start preheating your oven while you prep the lamb to save time.
Marinate overnight: Rub the lamb with olive oil, rosemary, salt, and pepper the night before for enhanced flavor and time efficiency.

Roast Leg of Lamb with Rosemary
Ingredients
Main Ingredients
- 1 leg Lamb about 5-6 pounds
- 4 cloves Garlic sliced
- 2 tablespoon Rosemary chopped
- 2 tablespoon Olive Oil
- 1 teaspoon Salt
- 1 teaspoon Black Pepper
Instructions
- Preheat your oven to 375°F (190°C).
- Make small incisions all over the lamb and insert garlic slices.
- Rub the lamb with olive oil, rosemary, salt, and pepper.
- Place the lamb in a roasting pan and roast for 1.5 hours or until the internal temperature reaches 145°F (63°C).
- Let the lamb rest for 15 minutes before carving.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
More Amazing Recipes to Try 🙂
- Sopa de Fideos Recipe30 Minutes
- Wonton Soup Recipe50 Minutes
- Pork Roast Recipe2 Hours 15 Minutes
- Buffalo or Barbeque Chicken and Rice Wraps Recipe35 Minutes
- Canadian Pork Loin Chops Recipe30 Minutes
- King Ranch Chicken Casserole Recipe1 Hours
- Blackened Fish Recipe20 Minutes
- Southern Fried Chicken Gizzards Recipe50 Minutes
Leave a Reply