Lamb Au Gratin Recipe

Name: Lamb Au Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 pound ground lamb; 2 cups sliced fresh mushrooms; 1 large onion, diced small; 2 carrots, diced small; 1 clove garlic, minced; 1 (1 ounce) package dry onion soup mix; 2 tablespoons butter; 2 tablespoons all-purpose flour; 2 cups milk; 1 cup shredded sharp Cheddar cheese; 1 cup shredded Havarti cheese; 1 egg, beaten; 3 large potatoes, thinly sliced; salt and ground black pepper, to taste

Servings: persons

1 pound ground lamb
2 cups sliced fresh mushrooms
1 large onion, diced small
2 carrots, diced small
1 clove garlic, minced
1 (1 ounce) package dry onion soup mix
2 tablespoons butter
2 tablespoons all-purpose flour
2 cups milk
1 cup shredded sharp Cheddar cheese
1 cup shredded Havarti cheese
1 egg, beaten
3 large potatoes, thinly sliced
salt and ground black pepper, to taste

1
Preheat oven to 375 degrees F (190 degrees C). Thoroughly grease a covered baking dish.
2
Heat a large skillet over medium-high heat. Cook and stir ground lamb in the hot skillet until some of the fat begins to render; add onion, carrots, and garlic. Continue to cook and stir the mixture until the lamb is completely browned and crumbly, 5 to 7 minutes. Stir soup mix into the lamb mixture; remove skillet from heat.
3
Melt butter in a saucepan over medium heat. Whisk flour into butter, 1 tablespoon at a time, making sure there are no lumps between additions. Pour milk into the butter mixture while whisking; continue to whisk until the milk thickens and the mixture is smooth.
4
Switch heat below saucepan to 'off.' Stir Cheddar cheese and Havarti cheese into the milk mixture until the cheese is melted and the sauce is smooth.
5
Spoon a small amount of the cheese sauce into the beaten egg in a bowl; whisk together to temper the egg. Pour the tempered egg into the cheese sauce and stir.
6
Arrange sliced potatoes in the bottom of the prepared baking dish, overlapping to make a layer about 1/2-inch deep; season with salt and pepper. Pour about 1/3 of the cheese sauce over the potatoes and spread into an even layer. Spread the lamb mixture evenly atop the cheese sauce layer. Layer remaining potatoes atop the lamb; season again with salt and pepper. Pour remaining cheese over the top. Cover baking dish.
7
Bake in preheated oven until the potatoes are tender, about 90 minutes. Remove cover and continue baking until the top browns, about 30 minutes more.

874

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 14 ingredients. The key ingredients include: 1 pound ground lamb, 2 cups sliced fresh mushrooms, 1 large onion, diced small, 2 carrots, diced small, and more.

Yes, Lamb Au Gratin falls under the Soups & Stews category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

That's it — enjoy your meal!

Lamb Au Gratin

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions