Three Onion Casserole

READY IN: 1hr 20mins
Recipe by Chef Kate

From the Silver Palate Good Times Cookbook, this dish is a wonderfully rich and fragrant side dish for a festive meal. It is wonderful as an accompaniment to a roast of beef or poultry.

Top Review by jaesea

Fantastic response to this dish.... I added sliced potatoes the first time and had no leeks the second time so added potatoes and spinach. Used havarte, fontina and allouette garlic and herb with a good Sancerre for the wine. Onions will never go to waste in my house again!!!! Thank you for this yummy gem.

Ingredients Nutrition


  1. Preheat oven to 350°F
  2. Butter an 8 cup baking dish with 1 tablespoon of butter.
  3. Make a layer in the baking dish, using a third each of the yellow onions, red onions and leeks.
  4. Sprinkle the layer sparingly with salt and pepper and top with the Havarti.
  5. Make another layer of the onions and leeks. Add a little more pepper.
  6. Top this layer with the Boursin.
  7. Layer the remaining onions and leeks and top with the Gruyere.
  8. Dot the top with the remaining 2
  9. tablespoons butter.
  10. Pour the wine over all.
  11. Bake for 1 hour.
  12. Cover the top with aluminum foil,
  13. if it gets too brown.
  14. Serve immediately.

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