Cheesy Beef and Mashed Potato Bake

Name: Cheesy Beef and Mashed Potato Bake
Prep time: 40 min
Total time: 40 min
Yield: 10 servings
Cuisine: Française
Ingredients: 1 kg ground beef; 1/2 onion, finely chopped; 2 garlic cloves, minced; Fresh parsley, chopped, to taste; Salt and black pepper, to taste; 2 tablespoons olive oil; 1 kg floury potatoes; 3 tablespoons unsalted butter; Warm whole milk, as needed; 80 g grated parmesan; 300 g shredded mozzarella

By Marie Lefebvre · Updated October 31, 2026

A hearty layered casserole of seasoned ground beef sandwiched between silky mashed potatoes and finished with a golden, bubbling cheese crust. Simple to make and deeply comforting, this crowd-pleasing bake is weeknight dinner perfection.

Prep⏱️ 40 min

Servings👥 10 servings

Difficulty📊 Easy

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🛒 Ingredients

10 servings

1 kg ground beef
1/2 onion, finely chopped
2 garlic cloves, minced
Fresh parsley, chopped, to taste
Salt and black pepper, to taste
2 tablespoons olive oil
1 kg floury potatoes
3 tablespoons unsalted butter
Warm whole milk, as needed
80 g grated parmesan
300 g shredded mozzarella

🛍️ Recommended tools

🥩Poêle fonteSee on Amazon →🌡️Thermomètre sondeSee on Amazon →🔪Couteau de chefSee on Amazon →

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Directions

1
Peel and boil the potatoes in salted water for about 20 minutes until completely tender. Drain, then mash with butter and warm milk until smooth and creamy. Season with salt and pepper.
2
Heat oil in a large skillet over medium-high heat. Sauté onion and garlic until golden and fragrant, about 3–4 minutes.
3
Add the ground beef and cook, breaking it apart with a spoon, until well browned and all moisture has evaporated. Season with salt, pepper, and parsley. Remove from heat.
4
Preheat oven to 200 °C (390 °F). In a greased baking dish, spread a layer of mashed potatoes, top with the beef mixture, then cover with another generous layer of mashed potatoes.
5
Sprinkle parmesan all over, then top with shredded mozzarella.
6
Bake for 15–20 minutes until the cheese is melted, bubbly, and golden brown. Rest 5 minutes before serving.

💡 Chef's Tip

Stir a spoonful of tomato paste into the beef for extra depth of flavor. Leftovers reheat beautifully — cover with foil and warm in a 180 °C oven for 15 minutes.