Philly Cheddar Grilled Cheese

Directions

1. 1
   In skillet, melt 2 t of the unsalted butter over medium heat.
2. 2
   Add the mushrooms and cook about 6 minutes.
3. 3
   Stir in horseradish.
4. 4
   Remove mixture from skillet; wipe clean.
5. 5
   Place 4 slices whole-grain white bread on work surface.
6. 6
   Using remaining butter, coat 1 side of each bread slice.
7. 7
   Turn 2 slices over; divide 1 ounce of the cheese, 2 ounces of the roast beef slices and mushrooms between slices.
8. 8
   Top with 1 ounce of the remaining cheddar cheese.
9. 9
   Top with remaining bread slices, butter side up.
10. 10
    In same covered skillet over medium heat, cook 4 minutes, turning once.