Roast Beef & Provolone Panini

1. 1

   Combine mayonnaise and horseradish in bowl.

2. 2

   Set aside.

3. 3

   Melt butter in 10-inch skillet until sizzling; add onions and mushrooms.

4. 4

   Cook over medium heat 5-7 minutes or until softened.

5. 5

   Spread horseradish mayonnaise onto cut-sides of focaccia bread.

6. 6

   Layer bottom half of focaccia with roast beef, onion and mushroom mixture, cheese, pepper rings and top half of bread.

7. 7

   Cut sandwich in half.

8. 8

   Heat panini grill.

9. 9

   Spray sandwich with no-stick cooking spray.

10. 10

    Place one-half sandwich onto panini grill.

11. 11

    Grill until golden brown.

12. 12

    Repeat with remaining sandwich.

13. 13

    Cut each half into 3 wedges.

* Per serving · 4 servings · Values may vary.