Ingredients

- Butter flavored cooking spray (available in supermarkets)
- 1 small onion (4 ounces, 120 g) sliced thin
- 4 ounces (120 g) mushrooms, sliced thin
- 1 clove garlic, minced
- 1 tablespoon (15 ml) low fat, low salt mayonnaise
- 1/4 teaspoon (1.25 ml) prepared horseradish
- 2 teaspoons (10 ml) ketchup
- 1 teaspoon (5 ml) Worcestershire sauce
- 1/4 teaspoon (1.25 ml) Dijon mustard
- 4-ounce (120 g) boneless, skinless chicken breasts
- 4 multi grain crisp rolls, about 1 ounce (30 g) each, cut in half horizontally

How to Prepare ?

Preheat grill or broiler. Coat a nonstick skillet with cooking spray Saute the onions and mushrooms over medium high heat until they are cooked through and begin to brown. Add the garlic and cook for two minutes- Set aside.
In a small cup combine the mayonnaise, horseradish, ketchup, Worcestershire sauce and mustard. Set aside, Grill the chicken until done, about 5 minutes per side, Allow to stand for 5 minutes. Cut into thin slices. Heat the ,rolls on the grill Just before assembling the sandwiches.
To serve, place 1 teaspoon (5 ml) of the sauce on the bottom of each roll. Top with chicken slices, onions and mushrooms. Serve warm.