Potato Onion Egg Casserole

Discover the ultimate comfort food with this Potato Onion Egg Casserole, a hearty and flavorful dish that's perfect for breakfast, brunch, or even dinner. Layers of tender russet potatoes, golden caramelized onions, and gooey cheddar cheese are baked to perfection in a creamy egg mixture seasoned with garlic and pepper. This crowd-pleasing casserole is brought to life with a touch of buttery richness on top and optional fresh parsley for a burst of color and freshness. With just 20 minutes of prep and a quick assembly, this oven-baked delight is simple yet satisfying, making it an ideal choice for feeding a family or impressing guests at your next gathering. Serve it warm and enjoy a dish that’s equal parts rustic charm and melt-in-your-mouth flavor.

Nutriscore Rating: 69/100

Prep Time:20 mins

Cook Time:55 mins

Total Time:75 mins

Servings: 6

Ingredients

• 4 large Russet potatoes
• 2 medium Onions
• 8 large Eggs
• 2 cups Cheddar cheese, shredded
• 1 cup Milk
• 3 tablespoons Olive oil
• 1 tablespoon Unsalted butter
• 1.5 teaspoons Salt
• 0.5 teaspoons Pepper
• 0.5 teaspoons Garlic powder
• 2 tablespoons Fresh parsley, chopped (optional)

Directions

Step 1

Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch casserole dish and set it aside.

Step 2

Peel the potatoes and slice them into thin, even slices about 1/8 inch thick. Use a mandolin slicer for consistency if you have one.

Step 3

Peel and thinly slice the onions.

Step 4

Heat 2 tablespoons of olive oil in a large skillet over medium heat. Add the onions and cook for 8-10 minutes, stirring frequently, until they become golden and caramelized. Set aside.

Step 5

In the same skillet, add the remaining 1 tablespoon of olive oil and the sliced potatoes. Cook for 5-7 minutes, stirring occasionally, until they are slightly tender but not fully cooked. Remove from heat.

Step 6

In a large mixing bowl, whisk together the eggs, milk, salt, pepper, and garlic powder until fully combined.

Step 7

Layer half of the potato slices in the prepared casserole dish, ensuring they overlap slightly. Spread half of the caramelized onions on top, followed by 1 cup of shredded cheddar cheese.

Step 8

Repeat the layers with the remaining potatoes, onions, and cheese.

Step 9

Pour the egg mixture evenly over the layered ingredients, ensuring it seeps into the layers.

Step 10

Dot the top with the unsalted butter for added richness.

Step 11

Cover the casserole dish with aluminum foil and bake in the preheated oven for 30 minutes.

Step 12

Remove the foil and continue baking for an additional 20-25 minutes, or until the top is golden brown and the eggs are set.

Step 13

Remove the casserole from the oven and let it cool for 5-10 minutes before slicing and serving.

Step 14

Garnish with fresh parsley if desired, and serve warm.

Nutrition Facts

Serving size	(2357.9g)

Amount per serving	% Daily Value*
Calories	3318.2

Total Fat 169.4g	0%
Saturated Fat 77.1g	0%
Polyunsaturated Fat 4.2g
Cholesterol 1781.0mg	0%
Sodium 5816.2mg	0%
Total Carbohydrate 306.2g	0%
Dietary Fiber 24.8g	0%
Total Sugars 40.1g
Protein 151.4g	0%

Vitamin D 483.4IU	0%
Calcium 2357.0mg	0%
Iron 23.5mg	0%
Potassium 8312.0mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 45.4%

Protein: 18.1%

Carbs: 36.5%