Mortadella Sandwiches with Grapes, Mushrooms and Tapenade

• Recipe by Harold Dieterle

Challenged to invent a sandwich during Top Chef, Dieterle came up with this unexpectedly delicious combination. His sandwich won the contest—and a place on the menu at Tom Colicchio's new 'wichcraft, opening in San Francisco in September.

Ingredients

1. 2 ounces trumpet royal or oyster mushrooms
2. 1 tablespoon extra-virgin olive oil
3. Salt and freshly ground pepper
4. 3 tablespoons mayonnaise
5. 3 tablespoons jarred tapenade
6. 4 slices toasted sourdough bread
7. 1/2 cup sliced red grapes
8. 6 ounces sliced mortadella
9. 1 teaspoon chopped parsley

Directions

1. In a medium skillet, sauté the mushrooms in the olive oil until tender; season with salt and pepper. Mix the mayonnaise with the tapenade and spread on the toasted sourdough. Top half of the slices with the mushrooms, grapes, mortadella and parsley. Close the sandwiches, halve and serve.