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Best Green Bean Casserole

A green bean casserole makes the Thanksgiving holiday complete, and this version can be on the table in no time at all thanks to just four ingredients from your pantry or fridge: canned green beans, condensed mushroom soup, French-fried onions, and shredded Cheddar cheese.
Print Recipe
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course lunch/dinner
Cuisine American
Servings 6 people
Calories 786.6 kcal

Equipment

  • 1 Large Microwave-Safe Mixing Bowl
  • 1 Spatula or Mixing Spoon
  • 1 Casserole Dish Approx. 1.5 to 2-quart capacity

Ingredients
  

Main

  • 2 14.5 ounce cans green beans, drained
  • 1 10.5 ounce can condensed cream of mushroom soup
  • 1 cup shredded Cheddar cheese divided
  • 1 6 ounce can French-fried onions

Instructions
 

  • Preheat the oven to 350 degrees F (175 degrees C).
  • Mix green beans and condensed soup together in a large microwave-safe bowl until well combined. Microwave on high until warm, 3 to 5 minutes.
  • Stir 1/2 cup Cheddar cheese into the green bean mixture. Microwave on high for 2 to 3 minutes.
  • Transfer mixture to a casserole dish and spread evenly over the bottom. Sprinkle remaining Cheddar over top, then sprinkle with the French-fried onions.
  • Bake in the preheated oven until cheese is melted and the onions are just turning brown, about 10 minutes.

Notes

For enhanced flavor, consider sautéing a small diced shallot or a handful of fresh sliced mushrooms with a pinch of thyme before adding them to the green bean mixture. This adds an extra layer of umami and aromatic depth. To achieve a superior texture, use fresh or frozen blanched green beans instead of canned; they retain more bite and vibrant color. Be mindful not to overbake, as the canned green beans can become overly soft and the French-fried onions can burn quickly. For an extra crispy topping, you can toast the French-fried onions separately in a dry pan for a minute or two before adding them to the casserole.