Turkey and mushroom strudels

Ingredients

• 3 tbsp butter , divided
• 4 cups sliced assorted mushrooms , (such as oyster, shiitake and cremini)
• 2 shallots , thinly sliced
• 1 garlic clove , minced
• 2 tbsp all-purpose flour
• 1/2 cup white wine
• 1 1/2 cups low-sodium chicken broth
• 4 cups cooked strips of turkey
• 3/4 cup chopped, peeled and roasted chestnuts
• 1/4 cup chopped parsley
• 2 tsp Dijon mustard
• 2 tsp lemon juice
• 1/4 tsp salt

To assemble

• 1/4 cup butter
• 2 tsp chopped thyme
• 8 sheets phyllo pastry