Creamy Green Bean Casserole From Scratch Recipe

Ingredients For Creamy Green Bean Casserole From Scratch Recipe

• 1 Large Onion
• 0.5 cup All purpose flour
• 0.75 cup Panko breadcrumbs
• 0.5 teaspoon Salt
• 0.25 teaspoon Ground black pepper
• 1 Large egg
• 1 tablespoon Milk
• 1 tablespoon salt, divided
• 1 pound Fresh green beans, rinsed, trimmed and halved
• 2 tablespoon Unsalted butter
• 8 ounce Mushrooms, sliced into halves or quarters
• 0.5 teaspoon Ground black pepper
• 2 Cloves Garlic, Minced
• 2 tablespoon All purpose flour
• 0.75 cup Chicken Or Vegetable Broth
• 0.5 cup 1 and 1/4 and half