Hachis Parmentier (Mashed Potato Casserole)

Step 1

In a large frying pan, cook the onions & garlic in the butter & olive oil on medium heat for about 5 minutes. Stir in the tomatoes, ground beef, herbs, salt & pepper. Cook until the meat is browned thoroughly. Turn off heat & add egg yolk & Parmesan cheese, stirring to mix completely.

Step 2

Spread the meat in the bottom of a lightly oiled oven proof dish (a 9x13 would be perfect). Spread the potatoes on top of the meat mixture. And finish by sprinkling the grated cheese on top.

Step 3

Bake in 400 deg oven for 15 to 20 minutes, until the cheese is melted & the potatoes lightly browned.