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Easy Slow Cooker Green Bean Casserole with Bacon

easy slow cooker green bean casserole with bacon - featured image
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This creamy, savory green bean casserole is made from scratch with fresh green beans, a rich mushroom sauce, and crispy bacon. The slow cooker does all the work, freeing up your oven for other dishes.

Ingredients

Scale
  • 1 ½ pounds fresh green beans, trimmed and halved
  • 8 slices bacon, chopped
  • 8 ounces mushrooms, sliced
  • 1 medium yellow onion, diced
  • 3 cloves garlic, minced
  • 3 tablespoons unsalted butter
  • 3 tablespoons all-purpose flour
  • 1 ½ cups low-sodium chicken broth
  • 1 cup heavy cream
  • ½ cup sour cream
  • 1 tablespoon Worcestershire sauce
  • Salt and black pepper to taste
  • 1 ½ cups crispy fried onions (for topping)
  • 1 teaspoon fresh thyme, chopped (optional)

Instructions

  1. Cook the bacon in a cold skillet over medium heat until crispy, about 8-10 minutes. Transfer to a paper towel-lined plate. Reserve 1 tablespoon of bacon fat in the skillet.
  2. Add butter to the skillet with the reserved bacon fat. Sauté mushrooms and onion over medium heat until mushrooms release liquid and brown, and onions are soft, about 7-8 minutes. Add garlic and cook 1 minute more.
  3. Sprinkle flour over the mushroom mixture and stir constantly for 2 minutes to make a roux.
  4. Slowly whisk in chicken broth, then heavy cream. Cook, stirring, until sauce thickens slightly, about 3-4 minutes.
  5. Remove from heat. Stir in sour cream, Worcestershire sauce, thyme (if using), salt, and pepper. Taste and adjust seasoning.
  6. Place green beans in the slow cooker. Pour sauce over the top. Add half the cooked bacon and stir to coat.
  7. Cover and cook on LOW for 3 to 4 hours or on HIGH for 1 ½ to 2 hours, until green beans are tender but still have a bite.
  8. About 15 minutes before serving, sprinkle crispy fried onions and remaining bacon over the top. Cover and let warm through.
  9. Let casserole rest for 5-10 minutes before serving. Serve warm.

Notes

Don’t skip the roux; it removes raw flour taste. Start checking green beans at 3 hours on LOW to avoid mush. Pat green beans dry to prevent watery sauce. Add fried onions at the end for crunch. Let casserole rest before serving to thicken sauce.

Nutrition

Keywords: green bean casserole, slow cooker, bacon, holiday side dish, Thanksgiving, creamy, from scratch

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