Caramelized Onion and Potato Breakfast Casserole

3.8
(36)

Layer up this caramelized onion breakfast casserole recipe before bed and refrigerate overnight. Then all that's left to do in the morning is bake, slice, and serve.

Caramelized Onion Potato Breakfast Casserole
Photo: Andy Lyons
Prep Time:
45 mins
Chill Time:
4 hrs
Bake Time:
45 mins
Stand Time:
15 mins
Total Time:
5 hrs 45 mins
Servings:
8

Ingredients

  • 4 cup sliced golden potatoes, cut 1/8 to 1/4 inch thick (about 1 1/2 pounds)

  • 1 tablespoon olive oil

  • 2 ounce pancetta, chopped

  • 3 cup thinly sliced sweet onions, such as Vidalia or Maui

  • Butter

  • 6 eggs, lightly beaten

  • ½ cup milk

  • 1 cup shredded Gruyère cheese or Swiss cheese

  • 1 teaspoon salt

  • 1 teaspoon snipped fresh rosemary

  • ½ teaspoon ground black pepper

Directions

  1. In a large saucepan cook potatoes, covered, in boiling lightly salted water about 5 minutes or until slightly tender but still firm. Drain; set aside. In a large skillet heat olive oil over medium-high heat. Add pancetta; cook until lightly browned. Using a slotted spoon, remove pancetta, reserving drippings in skillet. Set pancetta aside. Add onions to skillet. Cook and stir over medium-low heat about 20 minutes or until lightly browned and very tender. Remove from heat. Carefully stir potatoes and pancetta into onions in skillet.

  2. Lightly butter a 2-quart rectangular baking dish. Spread potato mixture into prepared dish. In a medium bowl whisk together eggs and milk. Add cheese, salt, rosemary, and pepper; stir until well mixed. Pour evenly over potato mixture in baking dish.

  3. Preheat oven to 350°F. Bake, uncovered, for 45 to 50 minutes or until golden and a knife inserted in the center comes out clean. Let stand for 15 minutes before serving.

Make-Ahead Tip

Prepare as directed. Cover; chill for at least 4 hours or up to 24 hours. Preheat oven to 350°F. Bake, uncovered, for 45 to 50 minutes or until golden and a knife inserted in the center comes out clean. Let stand for 15 minutes before serving.

Nutrition Facts (per serving)

250 Calories
13g Fat
22g Carbs
13g Protein
Nutrition Facts
Servings Per Recipe 8
Calories 250
% Daily Value *
Total Fat 13g 17%
Saturated Fat 5g 25%
Cholesterol 180mg 60%
Sodium 535mg 23%
Total Carbohydrate 22g 8%
Total Sugars 4g
Protein 13g
Vitamin C 20.7mg 104%
Calcium 212mg 16%
Iron 1.6mg 9%
Potassium 533mg 11%
Folate, total 44.4mcg
Vitamin B-12 0.8mcg
Vitamin B-6 0.4mg

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

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