Caramelized Onion And Sweet Potato Quiche Recipe

Name: Caramelized Onion And Sweet Potato Quiche
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 tablespoons butter; 2 tablespoons cooking oil preferred; 3 cups onions chopped, about 2 large; 2 sweet potatoes small, peeled and diced into 1/2 inch cubes, about 2 cups; 2 cups baby spinach chopped fresh, chard, kale, or other; 4 eggs; 1 cup milk; 1/2 cup cream or half-and-half; 1/2 teaspoon kosher salt; 1 dash black pepper; 1 1/2 teaspoons herbs de provence or another herb blend like Italian season; 1 tablespoon flour; 1/2 cup romano cheese shredded fresh; 1/2 cup gruyere cheese or Swiss; 1 pie crust pre-baked

Servings: persons

2 tablespoons butter
2 tablespoons cooking oil preferred
3 cups onions chopped, about 2 large
2 sweet potatoes small, peeled and diced into 1/2 inch cubes, about 2 cups
2 cups baby spinach chopped fresh, chard, kale, or other
4 eggs
1 cup milk
1/2 cup cream or half-and-half
1/2 teaspoon kosher salt
1 dash black pepper
1 1/2 teaspoons herbs de provence or another herb blend like Italian season
1 tablespoon flour
1/2 cup romano cheese shredded fresh
1/2 cup gruyere cheese or Swiss
1 pie crust pre-baked

1
Add oil and butter to a large skillet over medium-high heat. Add onions and cook for about 5 minutes until onions soften and turn translucent. Reduce heat to medium-low, cover, and cook onions for about 20-25 minutes, stirring occasionally, until deep golden brown.
2
Add cubed sweet potatoes and spinach to skillet. Cook for 3-4 minutes until spinach is wilted. Remove from heat and set aside to cool.
3
Preheat oven to 325 degrees F.
4
In a large mixing bowl whisk together eggs, milk, cream, salt, pepper, and herbs. In a small bowl combine the cheeses with the flour, tossing until combined, then put cheese/flour mixture into the large bowl with the egg mixture; add also the onion mixture (when it has cooled enough to not scramble the eggs, slightly warmer than room temperature). Stir everything together until combined, then pour into the pre-baked pie crust.
5
Bake for about 40 minutes or until a knife inserted into the quiche comes out clean and it doesn't jiggle when you nudge the pan.

648

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.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

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 15 ingredients. The key ingredients include: 2 tablespoons butter, 2 tablespoons cooking oil preferred, 3 cups onions chopped, about 2 large, 2 sweet potatoes small, peeled and diced into 1/2 inch cubes, about 2 cups, and more.

Yes, Caramelized Onion And Sweet Potato Quiche falls under the Breakfast 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!

Caramelized Onion And Sweet Potato Quiche

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions