Creamy Beef and Potato Gratin

Instructions

1. 1

   In a large skillet, cook the ground beef over medium heat until no longer pink, then drain the excess fat.

2. 2

   Transfer the cooked beef to a greased 13x9-inch baking dish and top with the drained mushroom stems and pieces (if using).

3. 3

   In a small bowl, combine the au gratin potato mix, boiling water, milk, butter, salt, seasoned salt, and pepper. Pour the potato mixture over the beef and mushrooms.

4. 4

   Cover the dish and bake at 400°F for 30 minutes, or until heated through.

5. 5

   Sprinkle the shredded cheddar cheese over the top and bake for an additional 5 minutes, uncovered, until the cheese is melted.

6. 6

   Let the casserole stand for 10 minutes before serving.