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Green bean casserole with crispy onions

Serves   6
Prep time: 5 mins
Cooking time: 50 mins

Topped with crispy onions, this green bean casserole makes for a marvellous side dish. Tender green beans tossed through a creamy garlic and mushroom sauce topped with seasoned fried onions.

green bean casserole crispy onions




  • 750g green beans, trimmed 
  • 50g butter
  • 400g mushrooms, sliced
  • 2 onions, thinly sliced
  • 2 cloves garlic, minced
  • 2 ¼ Tbsp plain flour
  • ½ cup milk
  • 1 ¼ cups vegetable stock


  1. Preheat your oven to 170°C fan bake. Blanch the green beans in boiling water for 3 minutes or until just tender, then run under cold water and drain. 
  2. In a large frying pan, melt the butter over medium-high heat. Add the mushrooms and cook for 8-10 minutes or under tender. Add the garlic and cook for a minute. Season with salt and pepper. 
  3. Sprinkle the flour over and cook for a minute before gradually stirring in the milk, followed by the vegetable stock. Cook for 5 minutes or until the sauce thickens, stirring frequently. Toss the green beans through the mushroom sauce until well combined. Transfer into a large baking dish. Bake for 15 minutes or until heated through. 
  4. Meanwhile, bring a large pot to medium-high heat with enough oil to deep fry the onions. Fry the onions in batches for 5 minutes or until golden brown, drain on a paper towel. Season with salt and pepper. 
  5. Sprinkle the crispy onions over the green bean casserole to serve.

Top tip: Serve your green bean casserole with crispy shallots and lemon wedges for a tasty addition.

If fresh green beans are not available use frozen whole baby beans instead.