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Crock Pot Green Bean Casserole

This recipe offers a convenient slow cooker method for classic green bean casserole. Frozen green beans are combined with cream of mushroom soup, cheddar cheese, and water, then slow-cooked until tender. French fried onions are added towards the end for a crispy topping, making for an effortless and comforting side dish perfect for gatherings.
Course lunch/dinner
Cuisine south american
Servings 6 people
Calories 995.6 kcal

Equipment

  • 1 Slow Cooker Essential for slow-cooking the casserole
  • 1 Large Mixing Bowl For combining ingredients before adding to the slow cooker
  • 1 Spatula or Spoon For stirring ingredients and serving

Ingredients
  

Main

  • 2 bag frozen green bean
  • 10 3/4 oz cream of mushroom soup
  • 3 oz french fried onion ring
  • 1 cup grated cheddar cheese
  • 1 cup water

Instructions
 

  • Lightly grease the inside of your slow cooker insert to prevent sticking.
  • In a large mixing bowl, combine the frozen green beans, cream of mushroom soup, half of the French fried onions, grated cheddar cheese, and water.
  • Stir all ingredients thoroughly until well combined.
  • Pour the mixture into the prepared slow cooker insert.
  • Cover and cook on low for 3-4 hours, or on high for 2-3 hours, or until the green beans are tender and the casserole is bubbling.
  • Approximately 30-45 minutes before serving, sprinkle the remaining French fried onions evenly over the top of the casserole.
  • Replace the lid and continue cooking until the onions are heated through and slightly crisp.
  • Carefully remove the slow cooker insert.
  • Stir gently before serving.
  • Serve hot as a comforting side dish.

Notes

To elevate this classic, consider using a good quality, low-sodium cream of mushroom soup or making a homemade mushroom béchamel for a richer flavor. For best texture, add half of the French fried onions at the beginning and the remaining half during the last 30-45 minutes of cooking. This ensures some onions soften to meld with the casserole, while others retain their crispness for a textural contrast. Adjust the water amount if using fresh or canned green beans; frozen beans release more liquid. A pinch of garlic powder or a dash of Worcestershire sauce can add depth. For a cheesier crust, sprinkle extra cheddar on top during the last hour of cooking.