Zucchini White Castle Brunch Bake Recipe

Relive the nostalgic fun of White Castle with this surprisingly delicious brunch casserole! Inspired by a vintage White Castle cookbook, this recipe layers juicy zucchini and melty cheese between mini burgers, then soaks it all in a creamy egg custard overnight for maximum flavor. Prepare it the night before for a stress-free, impressive brunch that's sure to be a conversation starter. Get ready for a taste explosion that's both comforting and unique!

Prep Time 20 mins

Cook Time 60 mins

Calories 179.6 kcal

Protein 19g

Rating Be the first

127

Recipe Actions

Share this recipe:

Recipe Author

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Zucchini White Castle Brunch Bake

White Castle Hamburgers
Sharp Cheddar Cheese
Onions
2 cups sliced zucchini
6 large eggs
Low Fat Milk
1 teaspoon salt
2 tablespoons melted margarine

Cook Smarter with Sous, Your Kitchen Companion

Missing an ingredient for this Zucchini White Castle Brunch Bake? Need a perfect wine pairing or a healthy side dish idea? Don't guess—ask Sous! Your AI-powered sous-chef is ready to help you swap ingredients, adjust serving sizes, and discover flavor tips in seconds.

How to Make Zucchini White Castle Brunch Bake

Grease a 9x13-inch baking pan.
Arrange 16 mini White Castle hamburgers in the bottom of the prepared pan, removing the top buns and setting aside.
Evenly distribute 2 cups shredded cheddar cheese over the hamburger patties.
Top with 2 cups sliced zucchini and 1/2 cup thinly sliced white onions.
Replace the top buns on the burgers.
In a large bowl, whisk together 6 large eggs, 1 cup milk, 1 teaspoon salt, and 2 tablespoons melted margarine.
Pour the egg mixture evenly over the hamburger and bun layers.
Cover the pan tightly with plastic wrap and refrigerate for at least 8 hours, or preferably overnight.
Preheat your oven to 400°F (200°C).
Bake the casserole for 45-60 minutes, or until the egg mixture is set and lightly golden brown. Let stand for 10 minutes before serving.

Nutrition Information (Approximate per serving)

Sodium

21 g

Sugar

16g

Fat

23g

Carbs

Recipe Tags (Choose a tag and find related recipes!)

60 Minutes Or Less Time To Make Course Preparation Occasion Breakfast Easy Brunch Novelty

Frequently Asked Questions

How long does it take to make Zucchini White Castle Brunch Bake?

Zucchini White Castle Brunch Bake takes about 80 minutes from start to finish — roughly 20 minutes to prepare and 60 minutes to cook.

How many calories are in Zucchini White Castle Brunch Bake?

Zucchini White Castle Brunch Bake has approximately 179.6 calories per serving, with about 19 g protein, 1 g carbohydrates and 20 g fat.

What ingredients do I need for Zucchini White Castle Brunch Bake?

The key ingredients for Zucchini White Castle Brunch Bake are White Castle Hamburgers, Sharp Cheddar Cheese, Onions, Zucchini, Eggs, Low Fat Milk. See the full list with measurements above.