Zesty Cheesy Spinach and Mushroom Stuffed Shells Recipe - Beard and Bonnet

Ingredients

• 1 lb (454 g) large pasta shells
• 2 (10 oz/284 g) packages frozen spinach, thawed and drained
• 3 cups sliced shiitake or cremini mushrooms
• 2 cups ricotta cheese
• 2 cups shredded provolone cheese
• 1 cup shredded mozzarella cheese
• ¾ cup grated parmesan cheese
• 8 tbsps (1 stick/113 g) salted butter
• 2 tsps dried thyme
• 2 tsps dried basil
• 2 tsps dried oregano
• 2 chopped garlic cloves
• ¼ cup plain flour
• 2 cups milk
• 2 cups chicken broth
• Kosher salt and pepper to taste