Broccoli Cheddar Egg Bake

Gloria Morgan
Gloria Morgan
Published: July 2, 2026
Tags: Breakfast, Vegetarian, Broccoli, Cheddar, Brunch, Make-Ahead, Eggs, Casserole

Broccoli Cheddar Egg Bake

A simple breakfast casserole with tender broccoli, fluffy eggs, sharp cheddar, and fresh herbs baked until just set.

Prep Time:15 minCook Time:35 minTotal Time:50 minServings:6Difficulty:Easy

Broccoli cheddar egg bake is the kind of breakfast casserole that works for a slow weekend meal, a brunch table, or a few make-ahead weekday portions. The center stays custardy and soft, while the top turns lightly golden from a generous layer of sharp cheddar.

The broccoli is quickly blanched before baking so it keeps its green color and finishes tender without watering down the eggs. A small amount of onion adds sweetness, and the herbs bring enough freshness to keep the casserole from feeling heavy.

Use a standard 8-inch square baking dish or another 2-quart baking dish with similar depth. Letting the bake rest for a few minutes after it comes out of the oven makes it easier to slice into neat squares.

Serve it warm with toast, roasted potatoes, or a simple salad. Leftovers reheat well, making this a practical recipe when you want a high-protein breakfast ready without cooking from scratch each morning.

Nutrition (per serving)

Calories:235 kcal
Protein:17 g
Carbs:8 g
Fat:16 g

Directions

  1. 1
    Buttered square baking dish ready for the egg bake

    Heat the oven to 375°F. Butter an 8-inch square or similar 2-quart baking dish.

  2. 2
    Broccoli florets boiling in a pot of water

    Bring a medium pot of salted water to a boil. Add the broccoli and cook for 2 minutes, until bright green and barely tender.

  3. 3
    Blanched broccoli spread on a towel to dry

    Drain the broccoli well, then spread it on a clean towel for a minute so excess moisture does not thin the egg mixture.

  4. 4
    Diced onion softening in butter in a skillet

    Melt the butter in a small skillet over medium heat. Add the onion and cook for 4 to 5 minutes, stirring often, until softened but not browned.

  5. 5
    Egg mixture whisked in a large glass bowl

    Whisk the eggs, milk, Dijon mustard, garlic powder, salt, and pepper in a large bowl until the yolks and whites are fully combined.

  6. 6
    Unbaked broccoli cheddar egg mixture in a baking dish

    Fold in the broccoli, cooked onion, parsley, chives, and 1 cup of the cheddar. Pour the mixture into the prepared baking dish.

  7. 7
    Baked broccoli cheddar egg casserole with golden edges

    Sprinkle the remaining 1/2 cup cheddar evenly over the top. Bake for 30 to 35 minutes, until the center is set and the edges are lightly golden.

  8. 8
    Warm slice of broccoli cheddar egg bake on a plate

    Let the egg bake rest for 8 minutes before slicing. Serve warm, or cool completely and refrigerate portions for reheating.

Ingredients

  • Broccoli Florets, cut small:4 cups
  • Large Eggs:8
  • Whole Milk:1 cup
  • Sharp Cheddar Cheese, shredded:1 1/2 cups
  • Small Yellow Onion, finely diced:1/2 cup
  • Unsalted Butter:1 tablespoon
  • Fresh Parsley, chopped:2 tablespoons
  • Fresh Chives, chopped:1 tablespoon
  • Dijon Mustard:1 teaspoon
  • Garlic Powder:1/2 teaspoon
  • Kosher Salt:3/4 teaspoon
  • Black Pepper:1/4 teaspoon

Tips & Notes

  • Dry the blanched broccoli well so the casserole slices cleanly instead of turning watery.
  • For a stronger cheddar flavor, use extra-sharp cheddar and grate it from a block.
  • Reheat slices loosely covered in a 325°F oven or briefly in the microwave until warmed through.