30 Minute Shepherd’s Pie

Recipe courtesy Rachael Ray

Ingredients:
2 pounds potatoes, such as russet, peeled and cubed
2 tablespoons sour cream or softened cream cheese
1 large egg yolk
1/2 cup cream, for a lighter version substitute vegetable or chicken broth
Salt and freshly ground black pepper
1 tablespoon extra-virgin olive oil, 1 turn of the pan
1 3/4 pounds ground beef
1 carrot, peeled and chopped
1 onion, chopped