Traeger Grills® - The Original Wood Pellet Grill

Ingredients

• 1 1/2 Pound portobello or cremini mushrooms
• 1 large shallot, finely chopped
• 2 garlic cloves, minced
• 2 Tablespoons olive oil
• 2 Teaspoons fresh thyme leaves
• 1/2 Teaspoon kosher salt
• 1/4 Teaspoon freshly ground black pepper
• 1 whole trimmed beef tenderloin (about 3½ lb; 1.5 kg)
• Traeger Coffee Rub
• 12 Slices Prosciutto Ham
• 2 Tablespoons Dijon mustard
• 2 packages frozen puff pastry, thawed according to package directions but kept cold (you may not need it all)
• 1 large egg