Onion Pie Recipe

I find so much joy in a hearty, easy dinner, especially on busy weeknights. This onion pie recipe truly fills the house with a comforting aroma of sweet, caramelized onions. It’s a wonderful, family-friendly meal that comes together without fuss, perfect for when life gets a bit hectic and you need a reliable dish.

Ingredients You’ll Need (with Smart Picks)

Crafting a delicious onion pie recipe starts with choosing fresh, quality ingredients. Here’s what you’ll need to gather:

• 1 (9-inch / 23 cm) all-butter pie crust, unbaked (for a flaky base; a store-bought crust makes this an easy dinner, or choose a gluten-free crust for dietary needs)
• 45 ml (3 tablespoons) unsalted butter (for richness; I always keep good quality butter on hand for this)
• 15 ml (1 tablespoon) olive oil (helps prevent scorching during the slow sautéing)
• 900 g (2 lb) mixed yellow and red onions, thinly sliced (about 6 cups) (the star of this savory pie; choose firm, unblemished organic onions for best flavor)
• 7 g (1 ½ teaspoons) ground sumac (adds a vibrant, tangy Mediterranean note to the onions)
• 3 g (½ teaspoon) fine sea salt, plus more to taste (essential for seasoning layers)
• 1 g (¼ teaspoon) freshly ground black pepper, plus more to taste (adds a subtle warmth)
• 3 large eggs (to bind the filling into a cohesive custardy texture)
• 240 ml (1 cup) full-fat milk or half-and-half (for a creamy, comforting filling; almond milk can be a dairy-free alternative if needed)
• 120 g (1 cup) sharp cheddar cheese, shredded (adds a wonderful savory depth; Gruyère or Swiss cheese also work well)
• 60 ml (¼ cup) full-fat plain yogurt (for the bright, refreshing drizzle)
• 15 ml (1 tablespoon) fresh lemon juice (brightens the Za’atar Yogurt Drizzle)
• 7 ml (½ tablespoon) extra virgin olive oil (enhances the flavor of the drizzle)
• 5 g (1 teaspoon) za’atar spice blend (for an aromatic, herbaceous finish)
• 5 g (¼ cup) fresh mint leaves, roughly chopped (for garnish, adds a burst of freshness)
• 5 g (¼ cup) fresh flat-leaf parsley, roughly chopped (for garnish, for a vibrant green pop)

Step-by-Step Instructions

This onion pie recipe comes together beautifully with these straightforward steps. I often chop my onions in the food processor to make this even quicker on a busy weeknight.

1. Preheat your oven to 190°C (375°F). Place the unbaked pie crust in a 9-inch (23 cm) pie dish. Prick the bottom lightly with a fork to allow steam to escape for even baking. Bake for 12-15 minutes until lightly golden; the crust should look slightly firm and set. Remove from oven and set aside to cool slightly, leaving the oven on.
2. In a large skillet or Dutch oven (my 10-inch cast iron skillet works perfectly here), melt the unsalted butter with olive oil over medium-low heat. Add the thinly sliced onions, a pinch of salt, and pepper. Cook, stirring occasionally, for 30-40 minutes, until the onions are deeply caramelized and tender, reducing heat as needed to prevent burning. The onions should be a rich, translucent brown. Stir in the ground sumac during the last 5 minutes of cooking, ensuring it’s well distributed for that tangy kick. A touch of fresh or dried thyme also complements the onions beautifully. If your onions aren’t browning after 15-20 minutes, increase heat slightly, but watch carefully to prevent burning.
3. In a medium bowl, whisk together the eggs, full-fat milk (or half-and-half), ½ teaspoon fine sea salt, and ¼ teaspoon black pepper until well combined and frothy. Stir in the shredded sharp cheddar cheese and the cooled sumac-kissed caramelized onions until just mixed. For a different flavor profile, using different cheeses like Gruyère or Swiss can also add wonderful depth to this savory pie.
4. Pour the onion and egg mixture into the partially baked pie crust. Gently spread the filling evenly; it should fill the crust without overflowing.
5. Bake for 35-45 minutes, or until the filling is set and the top is golden brown. A knife inserted near the center should come out clean, indicating it’s cooked through.
6. Remove the pie from the oven and let it cool on a wire rack for at least 20 minutes before slicing. This allows the filling to set completely for clean, beautiful wedges of your onion pie recipe.
7. While the pie cools, prepare the Za’atar Yogurt Drizzle: In a small bowl, whisk together the full-fat plain yogurt, fresh lemon juice, extra virgin olive oil, and za’atar spice blend until smooth. Season with a tiny pinch of salt if desired; the drizzle should be creamy.
8. For plating, cut the onion pie into generous wedges. Place a slice on a simple white or light-colored plate. Using a spoon, create a distinct swirl or zigzag of the Za’atar Yogurt Drizzle across the top. Generously sprinkle the roughly chopped fresh mint leaves and fresh flat-leaf parsley over the drizzle and the pie, ensuring a vibrant green pop against the golden pie and white sauce.

Best Times to Make It & Serving Suggestions

This onion pie recipe shines for many occasions, whether it’s a satisfying weeknight meal or a comforting brunch. It’s also a fantastic make-ahead dish for easy entertaining, making it one of my favorite family dinners. Serve a slice alongside a crisp green salad or some crusty bread for a complete meal.

For extra flair, add a dollop of sour cream or a sprinkle of fresh chives on top. Any leftovers of this delightful dish store beautifully in an airtight container in the fridge for 3-4 days. Reheat individual slices in the oven at 300°F (150°C) for 15-20 minutes, or quickly in the microwave. You can also freeze a whole cooked onion pie for up to 2 months; just thaw it in the fridge before reheating.

Why Onion Pie Recipe Fits Healthy Living

This onion pie recipe naturally aligns with healthy eating goals, packed with nutrient-rich onions. It becomes a quick healthy meal when you opt for whole, quality ingredients. This hearty dish is a good source of fiber and essential vitamins from the onions themselves.

It is easily adaptable as a protein dinner recipe by adding lean chicken or plant-based protein crumbles. For those seeking easy weight loss meals, consider a lighter crust and reduced cheese. This versatile onion pie recipe also makes one of the best meal prep dishes for balanced, ready-to-go lunches throughout the week.

Everyday Advantages for Busy People

This onion pie recipe truly shines for busy people by saving time with its straightforward prep, saving money with readily available ingredients, and significantly reducing mealtime stress. It’s a reliable family favorite, ensuring smiles all around.

It’s an affordable dish, relying on pantry staples and offering excellent versatility. You can easily customize it based on what you have on hand, making it a truly family-friendly option that everyone enjoys.

Extra Tips, Flavor Boosters & Adjustments

For the best flavor in your onion pie recipe, caramelize the onions slowly until deeply golden and sweet. A pinch of sugar can help them brown beautifully during sautéing. For a stunning presentation, brush the pie crust with an egg wash before baking to achieve an extra golden finish.

You can adjust the flavors too: add more black pepper for a spicier kick, or a splash of balsamic vinegar for added depth. For a creamier filling texture, I often swap milk for half-and-half. If you’re adapting for allergies, ensure you use a gluten-free crust. Always reduce salt for young children, making it a great family-friendly meal.

Reader FAQs About Onion Pie Recipe

Is onion pie good for a low-carb diet?

Yes, this dish can be made low-carb. Use an almond flour or ‘fathead’ crust instead of a traditional one. Be sure to check for any added sugars in your filling ingredients to keep the carb count down for your low-carb meals.

Can I meal prep this onion pie recipe for the week?

Absolutely! This onion pie recipe is fantastic for meal prep. Bake it on Sunday, then let it cool completely. Portion individual slices and refrigerate them in airtight containers for quick, easy lunches or family dinners all week long.

Can I add meat to my onion pie?

Certainly! Shredded cooked chicken, crumbled cooked (non-pork) sausage, or even plant-based protein crumbles can make this a heartier, high-protein dinner. Just ensure any additions are fully cooked before incorporating them into the filling.

What’s the best cheese for onion pie?

Classic choices for this savory bake include Gruyère, Swiss, or a sharp cheddar. A mix of cheeses can add wonderful depth of flavor, enhancing the overall profile of your meal. Organic ingredients can make a big difference here.

Can I freeze a cooked onion pie?

Yes, a fully baked pie freezes well. Wrap it tightly in plastic wrap and then foil, and it will keep for up to 2 months in the freezer. Thaw in the fridge overnight before reheating for best results.

How do I prevent a soggy crust with my onion pie recipe?

To avoid a soggy crust, I always blind bake my pie crust before adding the filling. It creates a barrier. Also, ensure the caramelized onions are well drained of any liquid before you add them to the pie.

Conclusion

This easy onion pie recipe delivers a delicious, comforting, and versatile meal that perfectly fits into a busy, healthy lifestyle. Pin this recipe on Pinterest now to save it for your next quick meal, offering family-friendly convenience tonight!

onion pie recipe

---

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

• Author: Madison Clarke
• Total Time: 140 minutes
• Yield: 8 servings 1x
• Diet: General

Print Recipe

Pin Recipe

Description

This onion pie recipe is a comforting and easy family-friendly dinner, filling the house with the aroma of sweet, caramelized onions. It features a flaky pie crust filled with a savory mixture of onions, eggs, and sharp cheddar cheese, finished with a tangy Za’atar Yogurt Drizzle.

---

Ingredients

Scale 1x2x3x

• 1 (9-inch) all-butter pie crust, unbaked
• 3 tablespoons unsalted butter
• 1 tablespoon olive oil
• 2 lb mixed yellow and red onions, thinly sliced (about 6 cups)
• 1.5 teaspoons ground sumac
• 0.5 teaspoon fine sea salt, plus more to taste
• 0.25 teaspoon freshly ground black pepper, plus more to taste
• 3 large eggs
• 1 cup full-fat milk or half-and-half
• 1 cup sharp cheddar cheese, shredded
• 0.25 cup full-fat plain yogurt
• 1 tablespoon fresh lemon juice
• 0.5 tablespoon extra virgin olive oil
• 1 teaspoon za’atar spice blend
• 0.25 cup fresh mint leaves, roughly chopped
• 0.25 cup fresh flat-leaf parsley, roughly chopped

Cook Mode Prevent your screen from going dark

---

Instructions

1. Preheat Oven and Bake Crust: Preheat your oven to 375°F (190°C). Place the unbaked pie crust in a 9-inch pie dish, prick the bottom lightly with a fork, and bake for 12-15 minutes until lightly golden. Remove from oven and set aside to cool slightly, leaving the oven on.
2. Caramelize Onions with Sumac: In a large skillet or Dutch oven, melt unsalted butter with olive oil over medium-low heat. Add the thinly sliced onions, a pinch of salt, and pepper. Cook, stirring occasionally, for 30-40 minutes until the onions are deeply caramelized and tender. Stir in the ground sumac during the last 5 minutes of cooking.
3. Mix Filling Ingredients: In a medium bowl, whisk together the eggs, full-fat milk (or half-and-half), 0.5 teaspoon fine sea salt, and 0.25 teaspoon black pepper until well combined. Stir in the shredded sharp cheddar cheese and the cooled sumac-kissed caramelized onions until just mixed.
4. Assemble Pie: Pour the onion and egg mixture into the partially baked pie crust. Gently spread the filling evenly.
5. Bake Pie to Golden: Bake for 35-45 minutes, or until the filling is set and the top is golden brown (a knife inserted near the center should come out clean).
6. Cool Pie Before Slicing: Remove the pie from the oven and let it cool on a wire rack for at least 20 minutes before slicing.
7. Prepare Za’atar Yogurt Drizzle: While the pie cools, in a small bowl, whisk together the full-fat plain yogurt, fresh lemon juice, extra virgin olive oil, and za’atar spice blend until smooth. Season with a tiny pinch of salt if desired.
8. Garnish and Serve: Cut the onion pie into generous wedges. Drizzle the Za’atar Yogurt Drizzle across the top. Generously sprinkle the roughly chopped fresh mint leaves and fresh flat-leaf parsley over the drizzle and the pie.

Notes

To save time, use a food processor for chopping onions. If onions aren’t browning after 15-20 minutes, increase heat slightly. Experiment with Gruyere or Swiss cheese. For dairy-free, use almond milk and a gluten-free crust if desired.

• Prep Time: 20 minutes
• Cook Time: 100 minutes
• Category: Main Course
• Method: Baking
• Cuisine: Mediterranean

Nutrition

• Serving Size: 1 slice (1/8 of pie)
• Calories: 380 calories
• Sugar: 12 g
• Sodium: 450 mg
• Fat: 30 g
• Saturated Fat: 18 g
• Unsaturated Fat: 12 g
• Trans Fat: 0 g
• Carbohydrates: 35 g
• Fiber: 4 g
• Protein: 18 g
• Cholesterol: 120 mg