Ina Gartens Overnight Breakfast Casserole Recipe delivers a custardy, savory egg bake with golden edges, melty Gruyere, and herby sausage in every bite. It suits busy hosts and holiday mornings, and the total time runs about 9 hours including the overnight chill and a 50-minute bake. I whisk this together on Christmas Eve while my kids raid the cheese bowl like tiny raccoons.
Easy Ina Gartens Overnight Breakfast Casserole Recipe
Ina Gartens Overnight Breakfast Casserole Recipe uses simple steps, pantry staples, and an overnight rest that does the work while you sleep. You cube bread, brown sausage, whisk eggs, and pour it all into a buttered dish. You wake up to a ready-to-bake casserole that tastes like a fancy brunch without any morning chaos.
You get flexible ingredients and forgiving ratios. The bread soaks up custard, the cheese melts into pockets, and the top bakes golden and crisp. You plate a crowd-pleasing breakfast that feels special but stays low stress.
Ingredients You Need
- 10 cups day-old crusty bread, cubed 1 inch (sourdough or French loaf works best; brioche gives a richer, softer bake)
- 1 pound breakfast sausage, casings removed (pork or chicken; mild or spicy)
- 1 tablespoon olive oil or butter
- 1 medium yellow onion, finely chopped
- 1 red bell pepper, diced (optional, adds color and sweetness)
- 2 cups shredded Gruyere (Swiss works in a pinch; I like Emmi or Jarlsberg)
- 1 cup shredded sharp cheddar (Tillamook shreds melt great and save time)
- 10 large eggs
- 2 cups whole milk
- 1 cup half-and-half or heavy cream (half-and-half keeps it lighter, cream makes it ultra plush)
- 1 tablespoon Dijon mustard (Maille or any smooth Dijon)
- 1 teaspoon kosher salt, plus more to taste
- 1/2 teaspoon freshly ground black pepper
- 1/4 teaspoon ground nutmeg
- 1 teaspoon fresh thyme leaves, chopped (or 1/2 teaspoon dried)
- 2 tablespoons chopped chives or scallions, plus more for garnish
- 2 tablespoons unsalted butter, melted, for drizzling
- Nonstick spray or extra butter for the dish
Pantry shortcuts and swaps:
- No Gruyere on hand? Use more cheddar, or mix in Monterey Jack or mozzarella for stretch.
- Skip sausage for a vegetarian version and add 8 ounces sautéed mushrooms and extra bell pepper.
- Use pre-shredded cheese to save time. Pat it dry if it feels moist so it melts better.
- Use frozen chopped onions and peppers if weeknights run wild.
Equipment:
- 9×13-inch baking dish
- Large skillet
- Large mixing bowl and whisk
- Measuring cups and spoons
- Foil and plastic wrap
- Sharp knife and cutting board
How to Make Ina Gartens Overnight Breakfast Casserole
- Prep: 20 minutes
- Chill: 8 to 24 hours
- Cook: 45 to 55 minutes
- Total: about 9 hours
- Butter a 9×13 baking dish and add the bread cubes in an even layer. Set it aside.
- Heat a large skillet over medium. Add the sausage and cook until browned and crumbly, 6 to 8 minutes. Break up clumps with a spoon and stir in the onion and bell pepper. Cook until the vegetables turn tender, 4 to 5 minutes. Remove from heat and let it cool for 5 minutes.
- In a large bowl, whisk the eggs, milk, half-and-half, Dijon, salt, pepper, nutmeg, thyme, and chives until smooth.
- Scatter half the sausage mixture over the bread. Sprinkle half the Gruyere and half the cheddar over it. Repeat with the remaining sausage and cheese.
- Pour the egg mixture evenly over the dish. Press the top gently with the back of a spoon so the bread absorbs the custard. Drizzle the melted butter over the surface.
- Cover tightly with plastic wrap, then foil. Refrigerate for at least 8 hours and up to 24 hours so the bread fully soaks.
- When morning arrives, heat the oven to 350°F. Remove the casserole from the fridge and let it stand at room temperature for 20 to 30 minutes while the oven heats.
- Uncover the dish. Bake on the center rack until the top turns golden and the center sets, 45 to 55 minutes. A knife inserted in the middle should come out hot with no liquid egg.
- Rest the casserole for 10 minutes. This pause helps the custard settle and makes clean slices.
- Garnish with extra chives or scallions. Slice and serve warm.
Tips
- Dry the bread slightly, or toast fresh cubes for 10 minutes at 300°F, so the custard soaks evenly.
- Season the custard well. Under-seasoned eggs taste flat once you add bread and dairy.
- Brown the sausage fully. Pale sausage waters down flavor and texture.
- Cool the sausage mix for a few minutes so it does not scramble the eggs when you assemble.
- Press the bread down after pouring the custard to avoid dry pockets.
- Chill overnight for best texture. A short soak leads to unevenly set slices.
- Don’t overbake. Pull it when the center just sets and the top turns golden.
- Let it rest 10 minutes before slicing so the structure holds.
- Reheat leftovers gently to keep the custard silky.
Variations I’ve Tried
- Ham and Swiss: Swap sausage for 2 cups diced thick-cut ham and use Swiss plus a touch of Parmesan.
- Spinach and Feta: Add 8 ounces sautéed spinach, a pinch of red pepper flakes, and 1 cup crumbled feta.
- Bacon and Leek: Cook 8 slices thick bacon until crisp, sauté sliced leeks in the drippings, and fold both into the layers.
- Mushroom Thyme: Brown mixed mushrooms, add extra thyme, and finish with Gruyere and a sprinkle of Parmesan.
- Southwest: Use pepper jack, add diced green chiles, and top with avocado and salsa at the table.
- Smoked Salmon Brunch: Skip sausage, add torn smoked salmon, dill, and goat cheese. Serve with lemon wedges.
How to Serve Ina Gartens Overnight Breakfast Casserole
Plate generous squares with a crunchy green salad or a bowl of fresh berries. Add hot sauce, salsa verde, or chive sour cream for a flavor boost. Serve with crispy roasted potatoes or a fruit platter for balance. Pour coffee for adults and orange juice for the kids and call it brunch.
Make-Ahead
Assemble the casserole up to 24 hours in advance and chill it covered. Refrigerate leftovers in an airtight container for 3 to 4 days. Freeze baked slices for up to 2 months or the full baked casserole for 3 months. Reheat covered in a 325°F oven until warm, 15 to 25 minutes for slices or 30 to 40 minutes for a full dish, or use the microwave in 30-second bursts to keep the custard tender.
Nutrition Information
Per serving, based on 12 servings: about 420 calories, 24 g fat, 15 g saturated fat, 26 g protein, 26 g carbs, 1 g fiber, 910 mg sodium, 6 g sugar. Numbers vary by brands and exact cheese and dairy choices. For a lighter option, use turkey sausage, 2 percent milk, and reduce cheese by one cup.
Ina Garten's Overnight Breakfast Casserole
Ingredients
Instructions
- Grease a 9x13-inch baking dish with butter or nonstick spray.
- In a large skillet over medium heat, cook sausage until browned, breaking it up as it cooks. Add diced onion and cook until soft. Remove from heat and let cool slightly.
- Spread the cubed bread evenly in the prepared baking dish. Top evenly with the sausage and onion mixture, then sprinkle with grated cheddar cheese.
- In a large bowl, whisk together the eggs, milk, salt, pepper, and nutmeg until well combined. Pour the egg mixture evenly over the bread and sausage mixture.
- Drizzle the melted butter over the top. Cover tightly with plastic wrap or aluminum foil and refrigerate overnight (or at least 8 hours).
- The next morning, preheat the oven to 350°F (175°C). Uncover the casserole and bake for 50–55 minutes, or until golden brown and set in the center.
- Allow to cool for 10 minutes before slicing and serving.