Green Bean Casserole with Fried Onions and Shitakes | Edible Bozeman

Ingredients

• 2 pounds thin green beans
• 1 tablespoon extra-virgin olive oil
• 1 pound Shiitake mushrooms
• 4 tablespoons unsalted butter, divided
• 2 sprigs thyme
• 2 tablespoons all-purpose flour
• 1¼ cups whole milk
• 1 cup heavy cream
• 4 cloves grated garlic
• ½ cup shredded Parmesan cheese
• Salt and black pepper
• ¾ cup Fried Onions (recipe below)
• 1 onion
• 1 tablespoon or 2 of cornstarch
• grapeseed oil