American Cuisine
Breakfast Sausage and Egg Casserole
By Dana Kowalski
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The breakfast strata, better known in most American kitchens as the sausage and egg casserole, is the dish that solved the holiday-morning problem. Its roots lie in the European bread pudding tradition, where stale bread was rescued by soaking it in a savory custard of eggs and milk, but it became a Midwestern and Southern brunch institution because it can be built the night before and slid into the oven while the coffee brews. That overnight rest is not just convenient, it is functional: the bread cubes drink in the custard, so by morning they bake up like the soft interior of French toast while the top sets into a golden, cheesy crust. Browning and draining the sausage first does two jobs, developing deep savory flavor and keeping the finished casserole from turning greasy. The ratio matters more than the brand: enough custard to soak the bread, enough cheese to bind without becoming heavy, and enough sausage in every bite to make it a real meal. It is endlessly forgiving, scales to feed a houseful, and turns a few pantry staples into the centerpiece of a relaxed weekend or Christmas-morning table.
Ingredients
Serves 6Instructions
- 1
Gather and prepare all ingredients as specified in the ingredient list.
- 2
Brown the sausage in a skillet; drain fat.
- 3
Place bread cubes in a greased baking dish.
- 4
Top with sausage and cheese.
- 5
Serve breakfast sausage and egg casserole immediately while hot.
- 6
Plate the dish attractively and garnish as desired.
- 1
Whisk eggs, milk, salt, and pepper. Pour over the casserole mixture.
- 2
Bake at 350°F (175°C) for 40-45 minutes until set and golden.
Chef's Tips
- ✦ Brown the sausage hard and drain it well; excess grease is the main reason casseroles turn soggy or oily.
- ✦ Use slightly stale or day-old bread, or dry fresh cubes in a low oven, so they soak up custard without falling apart.
- ✦ Assemble the night before and refrigerate covered; the overnight soak is what gives the casserole its tender, custardy interior.
- ✦ Let the assembled casserole sit at room temperature for 20 to 30 minutes before baking so it cooks evenly from edge to center.
- ✦ Confirm doneness with a thermometer: the center should reach 160 F, and a knife inserted in the middle should come out clean.
- ✦ Tent with foil if the top browns before the center sets, then remove it for the last 10 minutes to crisp the cheese.
Ingredient Substitutions
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breakfast sausage → turkey sausage or plant-based sausage crumbles
Turkey trims fat; plant-based crumbles make it vegetarian while keeping the savory bite.
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white or sourdough bread → gluten-free sandwich bread or croissants
GF bread makes the casserole gluten-free; croissants make it richer and more tender.
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cheddar cheese → pepper jack, Gruyere, or Swiss
Pepper jack adds heat; Gruyere or Swiss melt smoothly for a nuttier flavor.
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milk → half-and-half or unsweetened oat milk
Half-and-half makes a richer custard; oat milk keeps it dairy-free with a neutral taste.
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eggs → extra egg whites plus one whole egg
Lowers fat and cholesterol while keeping enough yolk to set the custard properly.
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bread (to add veggies) → sauteed spinach, mushrooms, or peppers folded in
Stretches the dish and adds vegetables; cook off their moisture first so the custard sets.
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Frequently Asked Questions
Can I assemble this casserole the night before? ▼
Yes, and it is better for it. Layer everything, pour over the egg-and-milk custard, cover tightly, and refrigerate overnight. The bread absorbs the custard for a more even, custardy texture. Bake straight from the fridge, adding about 5 to 10 minutes since it starts cold.
What internal temperature tells me it is fully baked? ▼
Because this casserole contains raw eggs, sausage, and dairy, bake it until the center reaches a safe internal temperature of 160 F (71 C). It should look set, not jiggly, and a knife inserted in the middle should come out clean. Use an instant-read thermometer to be sure.
How do I keep the casserole from turning out watery? ▼
Two causes: under-drained sausage and watery add-ins. Drain the browned sausage thoroughly, and if you add vegetables like spinach or mushrooms, saute them first to cook off their moisture. Letting it rest 10 minutes after baking also helps the custard finish setting.
Can I make it gluten-free or dairy-free? ▼
For gluten-free, use a sturdy gluten-free sandwich bread and verify your sausage contains no wheat fillers. For dairy-free, swap the milk for unsweetened oat or soy milk and use a dairy-free shredded cheese. Both adjustments bake the same way as the original.
How far in advance can I scale this for a crowd? ▼
The recipe serves 6 and doubles into a larger dish or two pans. For a big group, assemble up to 24 hours ahead and keep refrigerated. If doubling in one deep dish, expect to add 15 to 20 minutes of bake time and always confirm 160 F in the center before serving.
How should I store and reheat leftovers? ▼
Cool completely, then refrigerate covered for up to 4 days or freeze portions for up to 2 months. Reheat individual squares in the microwave until steaming, or warm the whole dish covered in a 325 F oven. Make sure reheated portions reach 165 F throughout.
