Cheesy Green Bean Casserole Recipe with The Usual Seasoning

Ingredients

• One 2-lb bag snipped green beans
• 1 tablespoon olive oil
• One 4-ounce container sliced mushrooms (white or cremini)
• 2 tablespoons unsalted butter
• 2 tablespoons all-purpose flour
• 2 cups heavy cream
• 1 tablespoon plus 1 teaspoon The Usual seasoning
• ¾ cup grated Parmesan cheese
• One 6-ounce can store-bought crispy onions, such as French’s