Select Page

Green Bean Casserole from Scratch Recipe

Creamy Green Bean Casserole Topped with Crispy Fried Onions Made from Scratch
Prep Time 30 minutes
Cook Time 1 hour 15 minutes
Course dinner, lunch, Side Dish
Cuisine American
Servings 6

Ingredients
  

  • 1.25lb/570g fresh green beans trimmed and cut into 2 inch pieces
  • 3 tbsp butter
  • 1/2 medium yellow onion sliced thinly
  • 10oz/285g mushrooms baby bella or white button, sliced
  • 1 tbsp garlic minced
  • 2 tbsp all purpose flour
  • 1/2 cup chicken stock
  • 1 1/2 cup whole milk
  • 2 pinches nutmeg grated
  • 1/2 tsp ground black pepper
  • 2 tsp soy sauce

Fried Onions

  • 2 large yellow onions sliced thin
  • 3 cups all purpose flour or more
  • 1.5 cups buttermilk
  • 1 tsp salt
  • 1/2 tsp ground black pepper
  • 1/2 tsp garlic powder
  • vegetable oil for frying

Instructions
 

  • Heat up a pot and add butter and the sliced onions, stir and cook for a minute. Add the sliced mushrooms. Sauté until soft. While the mushrooms are cooking, boil water in a pot to cook the green beans. When the mushrooms have given off their liquid, add the minced garlic. Stir and cook for 2 minutes. Add all purpose flour. Stir for a minute until the raw flavor of the flour goes away. Add the chicken stock and milk. Mix well. Grate the nutmeg into the sauce. Add ground black pepper. Bring to a boil and cook a minute or two, stirring until the sauce thickens and coats the back of a spoon. Stir in soy sauce. Taste and add salt if necessary. Set the sauce aside.
  • When the water comes to a boil, add 1 tablespoon salt and the green beans. Cook for 7 - 8 minutes until the beans are soft and tender but not mushy. They should not be crunchy, they need to be fully cooked for this dish. Drain the beans. Put the beans into the sauce and stir to combine.
  • For the fried onions - in a large bowl, mix the buttermilk and onions. Set this aside for 15 minutes.
  • To a large bowl, add all purpose flour, salt, ground black pepper and garlic powder. Whisk to combine.
  • Take a handful of onions and coat them in the seasoned flour. Put them in another bowl. You only want to coat what you can fit in the frying pan. Don’t coat all the onions at once. Do it in batches.
  • To fry the onions, heat oil in a pot to 350 degrees F or 180 C. When the oil is hot, put the onions in gently, a few at a time. Don’t overcrowd the pan. Fry for just a few minutes until golden, not golden brown.
  • To a 1.5 qt casserole dish, add the beans and sauce. Bake in a heated 350 degree F/ 180 C oven for 20 minutes or until hot and bubbly. Cover the top with 1.5 cups fried onions and bake for 5 minutes in the oven until they get a little darker in color.
  • ***There will be plenty of leftover fried onions, so you can halve the fried onion ingredients if you want to make a small amount.
  • ***Buttermilk Substitute - Mix milk and 1 tbsp vinegar. Set aside for 15 minutes. Stir and use.