Green Bean Casserole With French Fried Onions Recipe

Ingredients For Green Bean Casserole With French Fried Onions Recipe

• 2 Sweet onions, thinly sliced
• 2 cup Buttermilk
• 3 cup All purpose flour
• 2 pound Fresh green beans, trimmed and snapped in 1/2
• 1 tablespoon Olive oil
• 2 tablespoon Unsalted butter
• 1 Large sweet onion, diced
• 16 ounce Cremini mushrooms chopped
• 4 Garlic cloves, minced or pressed
• 2 tablespoon Flour
• 1.5 cup Chicken or vegetable stock
• 1.5 cup Heavy cream
• 0.25 teaspoon Freshly grated nutmeg
• 0.5 cup Freshly grated parmigiano reggiano cheese, plus more for topping