Brunch & Breakfast Easy Difficulty
★ 4.92 (198 Craver Ratings)

White Castle Breakfast Slider Casserole (Weekend Brunch Bake)

The White Castle Breakfast Slider Casserole bakes 8 diced breakfast sliders with 6 whisked eggs, 1 cup shredded hashbrowns, 1.5 cups cheddar cheese, and country sausage gravy at 350°F for 30 minutes. Inspired by favorites from the 24/7 breakfast menu.

White Castle Breakfast Slider Casserole (Weekend Brunch Bake)
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Tested Copycat Method
Prep Time 15 mins
Cook Time 40 mins
Total Time 55 mins
Yield 8 servings
Servings 8
Calories 380 kcal
Servings:

✦ Step-by-Step Instructions

4 Steps
1

Prep Oven & Baking Dish

⏱️ 5 mins

Preheat oven to 350°F (175°C). Grease a 9x13-inch baking dish with non-stick cooking spray or butter.

2

Layer Hashbrowns & Sliders

⏱️ 5 mins

Spread the thawed hashbrowns (or restaurant-style Hash Brown Nibblers) evenly along the bottom of the dish. Cut the 8 White Castle breakfast sliders into quarters and arrange the pieces evenly over the hashbrown layer. Sprinkle 1 cup of shredded Colby Jack cheese over the sliders.

3

Whisk the Egg Custard

⏱️ 5 mins

In a mixing bowl, whisk the 8 eggs, 1 cup milk, garlic powder, smoked paprika, salt, and black pepper until completely smooth. Pour the egg mixture evenly over the slider casserole dish.

4

Bake to Golden Fluffiness

⏱️ 40 mins

Top with the remaining 1 cup of cheese. Bake at 350°F (175°C) for 38 to 42 minutes until the eggs are set in the center and the top cheese is bubbly and golden-brown. Let rest for 5 minutes, slice into squares, and top with warm country sausage gravy if desired!

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Craver Test Kitchen Secrets

  • ✦ Overnight Prep & Hours: Assemble the entire dish the evening before, cover with foil, and refrigerate overnight. Because White Castle serves breakfast all day according to the 24/7 restaurant hours, you can pick up fresh sliders anytime.
  • ✦ Bacon Lover Swap & Macros: Make half the dish with Sausage Sliders and half with Bacon, Egg & Cheese Sliders. Calculate precise macros using our nutrition calculator.

Recipe FAQs & Home Cooking Tips

Can I freeze leftovers? ▼

Yes! Slice into individual squares, wrap tightly in foil, and freeze for up to 2 months. Reheat in a toaster oven for quick breakfasts alongside fresh roast coffee from the beverages menu.

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