Green Bean Casserole Recipe - Learn To Cook

Ingredients

• 2 medium onions, thinly sliced in half moons
• 1/4 cup all-purpose flour
• 2 Tbsp. panko bread crumbs
• 1 tsp.salt
• 1 pound fresh green beans, rinsed and trimmed
• 1 gallon water
• 2 Tbsp. kosher salt
• 2 Tbsp.unsalted butter
• 12 ounces cremini mushrooms, trimmed and cut into 1/2-inch pieces
• 1 tsp. salt
• 1/2 tsp. freshly ground black pepper
• 2 cloves garlic, minced
• 1/4 tsp. nutmeg
• 2 Tbsp. all-purpose flour
• 1 cup chicken stock
• 1 cup half-and-half