This delicious breakfast casserole is a perfect way to start your day with a boost of greens and gooey cheese. Easy to prepare and full of flavor, it’s ideal for busy mornings or leisurely weekend brunches.
Start by melting the butter in a medium skillet over medium heat. Toss in the onion and cook it until it’s soft and fragrant, about 5 minutes. Sprinkle in the herbes de Provence, salt, and pepper, and let it cook for another minute. Then stir in the spinach, take the pan off the heat, and set it aside.
Next, spray a 9x13-inch baking dish with cooking spray. Spread a third of the bread cubes evenly on the bottom. Add a layer of a third of the spinach mixture, then sprinkle a third of the mozzarella on top. Repeat these layers two more times until all the bread, spinach, and cheese are used up.
In a separate bowl, whisk together the eggs, milk, salt, and pepper until everything is well combined. Pour this mixture evenly over the layered bread and spinach in the dish. Cover it with plastic wrap and pop it in the fridge to chill for at least 8 hours, or up to a full day.
When you’re ready to bake, take the strata out of the fridge about 30 minutes beforehand so it can come to room temperature. Meanwhile, preheat your oven to 350°F (175°C).
Bake the strata uncovered for about 45 to 55 minutes, until it’s puffed up, golden on top, and cooked through. Let it sit for at least 5 minutes before slicing and serving.
- Use day-old bread for better texture as it soaks up the egg mixture without becoming soggy.
- Make sure to squeeze out excess moisture from the spinach to avoid a watery casserole.
- Let the strata rest for a few minutes after baking to help it set and make slicing easier.
This dish is a great way to start the day with a boost of protein and greens. It comes together quickly and can be made ahead, making busy mornings much easier. The combination of spinach and mozzarella creates a creamy, flavorful bite every time.
Serve warm with a side of fresh fruit or a simple green salad. A dollop of sour cream or a drizzle of hot sauce can add a nice kick. This dish pairs well with a cup of coffee or fresh orange juice for a complete breakfast.
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave or oven until warmed through. For longer storage, freeze in portions and thaw overnight before reheating.
