Mashed Potato-Egg Casserole


This make-ahead potato egg casserole gets an indulgent upgrade with Asiago cheese and arugula.

Mashed Potato-Egg Casserole
Photo: Helen Norman
Hands On Time:
25 mins
Total Time:
1 hr 45 mins


  • 2 ½ pound russet potatoes (5 to 6 potatoes)

  • 4 medium leeks, halved and sliced (2 cups)

  • 5 cloves garlic, minced

  • 2 tablespoon butter

  • 1 8 ounce carton sour cream

  • 4 ounce Asiago cheese, shredded (1 cup)

  • ½ teaspoon salt

  • ½ teaspoon ground black pepper

  • ¾ - 1 cup milk

  • 6 eggs

  • 1 tablespoon olive oil

  • ½ lemon, juiced

  • 2 cup baby spinach and/or arugula


  1. Prick potatoes with fork. Microwave on high 12 minutes or until fork-tender, turning once. Remove; cool until easy to handle. Preheat oven to 375°F. Grease a 2-quart baking dish; set aside. In a large skillet cook leeks and 4 cloves of the garlic in melted butter over medium heat 5 minutes or until tender and browned, stirring occasionally.

  2. Peel potatoes; place in large bowl. Mash with potato masher. Stir in leek mixture, sour cream, half of the cheese, 1/4 tsp. salt, and 1/4 tsp. black pepper. Stir in milk to make a creamy consistency. Spread in prepared dish. Bake 40 minutes or until starting to brown. Remove from oven. Make 6 indents in potato mixture. Place an egg in each indent. Bake 20 minutes more or until whites are set and yolks start to thicken. Sprinkle with remaining cheese. Cool slightly.

  3. In bowl whisk oil, lemon juice, remaining 1 clove garlic, 1/4 tsp. salt and 1/4 tsp. black pepper. Add spinach and/or arugula; toss to coat. Serve on casserole.

Nutrition Facts (per serving)

457 Calories
25g Fat
44g Carbs
17g Protein
Nutrition Facts
Servings Per Recipe 6
Calories 457
% Daily Value *
Total Fat 25g 32%
Saturated Fat 13g 65%
Cholesterol 238mg 79%
Sodium 491mg 21%
Total Carbohydrate 44g 16%
Total Sugars 5g
Protein 17g
Vitamin C 19.7mg 99%
Calcium 294mg 23%
Iron 3.5mg 19%
Potassium 1035mg 22%
Fatty acids, total trans 1g
Folate, total 91.5mcg
Vitamin B-12 0.7mcg
Vitamin B-6 0.9mg

*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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