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Breakfast Casserole

AT

By

Ago Tanfossi

Chef and recipe curator at Global Cucina

Published on March 10, 2026

Updated on April 1, 2026

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This easy breakfast casserole recipe is perfect for feeding a crowd! It's hearty and flavorful, filled with roasted potatoes, veggies, eggs, and cheddar cheese.

A hearty and flavorful breakfast casserole that's perfect for serving guests. The combination of roasted potatoes and mixed vegetables makes it a satisfying dish to enjoy any morning.

12 servings
Capolavoro Score 4.8/5 · 13 votes
Breakfast Casserole

Ingredients

Ingredients

  • 3 Yukon Gold potatoes
  • Freshly Ground Black Pepper
  • 12 Large Egg
  • 1 cup Milk
  • 1/2 yellow onion
  • 2 Garlic Cloves
  • 1 Red Bell Pepper
  • 1 green bell pepper
  • 1 cup Spinach
  • 4 Green Onion
  • shredded cheddar

for initial mix

  • 1 tbsp Olive Oil
  • 1/2 tsp Salt

for finishing

  • Salt
  • 2 tbsp Olive Oil

Instructions

  1. 1

    Roast the potatoes: Preheat the oven to 425°F and line a baking sheet with parchment paper. Place the potatoes on the baking sheet. Drizzle with olive oil, sprinkle with salt, and several grinds of pepper. Toss to coat. Spread evenly on the baking sheet and roast for 25 minutes, or until tender and browned.

  2. 2

    Make the casserole: Reduce the oven temperature to 350°F and oil a 9x13-inch baking dish.

  3. 3

    In a large bowl, whisk together the eggs, milk, and ¼ teaspoon of salt. Set aside.

  4. 4

    Heat olive oil in a large skillet over medium heat. Add onion, remaining 1 teaspoon salt, and several grinds of pepper. Cook, stirring occasionally, for 8 minutes or until soft. Add garlic, red pepper, and green pepper; cook, stirring occasionally, for 2 minutes. Add spinach and half the green onions and toss until just wilted.

  5. 5

    Spread potatoes in an even layer in the prepared baking dish. Top with 1 cup cheese, followed by the sautéed veggies. Pour in egg mixture and sprinkle with remaining ½ cup cheese and reserved green onions.

  6. 6

    Bake for 45 minutes or until eggs are set.

  7. 7

    Let stand for 5 minutes before slicing and serving.

Ago's Notes

  • Adjust salt to taste based on your canned goods.

The layers of flavor in this breakfast casserole speak for themselves, offering a delicious blend of textures and tastes reminiscent of traditional comfort food. Enjoy the simplicity and warmth of each bite as you share this dish with loved ones at your table.

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Breakfast

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