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Green Bean Casserole from Scratch
Green Bean Casserole from Scratch
0 Likes
Prep Time:
45 minutes
Cook Time:
20 minutes
Total Time:
65 minutes
Upgrade your green bean casserole with crispy homemade fried onion topping for an unbeatable classic dish.
Ingredients:
  • For the fried onions:
  • 1 red onion, thinly sliced
  • 1 1/2 cup buttermilk
  • 1 cup all-purpose flour
  • 1 cup Panko crumbs
  • 2 tablespoon mixed dried herbs - parsley, dill, thyme, whatever you want!
  • Kosher salt, for seasoning
  • Vegetable oil, for frying
  • For the casserole :
  • 2 pounds green beans, trimmed and cut into 2-inch lengths
  • 1/4 cup (1/2 stick) regular salted butter
  • 1 pound crimini or button mushrooms, trimmed and sliced
  • 2 teaspoons fresh thyme (or 1 teaspoon dried thyme)
  • 2 to 3 tablespoons all-purpose flour
  • 1 1/4 cup half-and-half
  • 1 1/4 cup low sodium chicken broth
  • 1/2 cup grated Parmesan cheese
Instructions:
  • Marinate sliced red onions in buttermilk in a bowl, then refrigerate for at least 15 minutes. In another bowl, mix flour, panko, and dried mixed herbs.
  • Heat vegetable oil in a Dutch oven or deep pot until it reaches 375°F or shimmers but doesn't smoke. Test if the oil is ready by adding a pinch of panko mixture; it should bubble and fry. Have a paper towel-lined baking sheet nearby for draining the fried onions.
  • Coat the buttermilk-drenched onions in the flour/panko mix, then fry in hot oil until golden brown. Remove the onions from the oil using a slotted spoon or tongs and let them drain on paper towels.
  • Preheat the oven to 375°F. Place a strainer over the sink and prepare a bowl with ice water.
  • Cook the green beans in boiling salted water for 5 to 6 minutes until just tender, then transfer them to a bowl of cold water to stop the cooking process. Drain and set aside after they have cooled.
  • In a large skillet, melt butter, then add mushrooms with a sprinkle of salt. Sauté until mushrooms are tender. Stir in garlic and thyme.
  • Create a velvety sauce: Coat mushrooms with flour, then pour in half-and-half and chicken broth. Simmer until thickened, then add Parmesan and green beans.
  • Prepare and bake the casserole: Spread the creamy green bean and mushroom mixture in a 3-quart or 9x13 casserole dish. Sprinkle the fried onions on top and bake in the oven for 15-20 minutes until bubbly. Serve hot. If you enjoyed the dish, kindly rate it and share your feedback in the comments.

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