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Best Green Bean Casserole

The Best Green Bean Casserole is a comforting, creamy side dish that’s perfect for any occasion, from holiday feasts to weeknight dinners. This classic casserole is made with tender green beans, a creamy mushroom sauce, and topped with crispy, golden fried onions for the ultimate crunch. The flavors are rich, savory, and deeply satisfying, making it a beloved dish at any table. Whether you're hosting a holiday dinner or simply want a delicious side dish to complement your meal, this green bean casserole is sure to be a crowd-pleaser.
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Equipment

  • 9x13 inch baking dish
  • Large mixing bowl
  • Medium saucepan for sauce
  • Spoon for mixing
  • Whisk for the sauce
  • Baking sheet (if baking onions separately)

Ingredients
  

  • Ingredients
  • 2 pounds fresh green beans trimmed and cut into bite-sized pieces
  • 1 can 10.5 oz cream of mushroom soup
  • 1/2 cup milk
  • 1/2 cup sour cream
  • 1 tablespoon butter
  • 1 small onion diced
  • 2 cloves garlic minced
  • 1/2 teaspoon dried thyme
  • Salt and pepper to taste
  • 1 1/2 cups crispy fried onions store-bought or homemade

Instructions
 

  • Cook the Green Beans: Preheat your oven to 350°F (175°C). Bring a large pot of salted water to a boil. Add the green beans and cook for 3-4 minutes, just until they’re tender but still crisp. Drain and set aside.
  • Make the Sauce: In a medium saucepan, melt the butter over medium heat. Add the diced onion and garlic, and sauté for about 3 minutes until they’re soft and fragrant. Add the cream of mushroom soup, milk, and sour cream. Stir to combine and bring to a simmer. Cook for about 5 minutes, stirring occasionally, until the sauce thickens. Season with thyme, salt, and pepper to taste.
  • Combine the Green Beans and Sauce: In a large mixing bowl, combine the cooked green beans with the creamy mushroom sauce. Stir well to coat the beans evenly in the sauce.
  • Assemble the Casserole: Transfer the green bean mixture into a 9x13-inch baking dish. Spread it out evenly. Top with the crispy fried onions, making sure they’re evenly distributed on top of the casserole.
  • Bake: Bake in the preheated oven for 25-30 minutes, until the casserole is bubbly and the onions on top are golden brown and crispy.
  • Serve: Remove from the oven and let it rest for a few minutes before serving. Enjoy the creamy, crunchy goodness of your homemade green bean casserole!