Holiday Three-Onion & Cheese Casserole Recipe

Name: Holiday Three-Onion & Cheese Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 3 tablespoons butter, unsalted; 2 large onions halved, thinly sliced; 2 large red onion halved, thinly sliced; 4 each leeks white & green parts, trimmed, halved lengthwise, rinsed,dried, thinly sliced; 1/2 teaspoon salt; 1 x black peppercorns freshly ground; 5 ounces havarti cheese shredded; 300 grams boursin cheese 2x 150 g packages with pepper; 1/4 pound gruyere cheese shredded; 4 ounces white wine dry

Servings: persons

1
1) Grease 12 cup baking dish with 1 tablespoon butter.
2
2) Layer 13 each of yellow onions, then red onions, then leeks(separate onion slices as you sprinkle them in the dish).
3
Sprinkle with 1/4 teaspoon salt, then pepper.
4
Top with havarti.
5
3) Repeat as above, only top with crumbled boursin.
6
4) Layer remaining onions & leeks.
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Sprinkle gruyere over top.
8
5) Pour wine evenly over top.
9
Cut remaining 2 tbsp butter into small pieces.
10
Dot over top.
11
6) Bake in preheated oven 350F (180C) oven until very tender(2 hours) Cover top with tinfoil once cheese gets brown after about 45 minutes.

681

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 10 ingredients. The key ingredients include: 3 tablespoons butter, unsalted, 2 large onions halved, thinly sliced, 2 large red onion halved, thinly sliced, 4 each leeks white & green parts, trimmed, halved lengthwise, rinsed,dried, thinly sliced, and more.

Yes, Holiday Three-Onion & Cheese Casserole falls under the General category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

That's it — enjoy your meal!

Holiday Three-Onion & Cheese Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions