Truffled Mushroom with Prosciutto and Tallegio Grilled Cheese

Ingredients (9)

• 2 tablespoons butter
• 1 tablespoon olive oil
• 1/4 pound brown mushrooms
• 2 cups spinach leaves
• 8 slices prosciutto
• 16 slices Tallegio cheese
• 1/2 teaspoon truffle oil
• kosher salt
• 8 slices sourdough bread