Name: Christmas Breakfast Casserole Healthy: Veggie Egg Bake
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Ingredients: 10 large eggs (beaten); 2 cups whole milk (or 2%); 10 slices whole-grain bread (cut into 1-inch cubes (about 7 cups)); 5 oz baby spinach (chopped); 1/2 cup sun-dried tomatoes (oil-packed, drained and chopped); 5 oz feta (crumbled, divided); 1 small red onion (diced); 1 tbsp olive oil; 1 tsp garlic powder; 1/2 tsp salt; 1/4 tsp black pepper

Christmas morning has enough going on without a skillet full of eggs demanding your attention. This Christmas breakfast casserole is the answer: whole-grain bread, sweet wilted onion, baby spinach, sun-dried tomatoes and feta, all tucked under a light egg custard and baked until the edges turn golden. You assemble it the night before, slide it into the oven while the coffee brews, and forty minutes later there is a warm, savory centerpiece that feeds eight. It is the kind of holiday breakfast that feels generous without asking much of the cook, and it happens to be meatless, so it fits just about any table.

Why This Veggie Egg Bake Works on Christmas Morning

The quiet genius of this casserole is that the bread does the work. Cubes of whole-grain bread sit overnight in a custard of eggs and milk, so by morning they are soft in the middle and crisp at the edges, with none of the dry patches you get from pouring custard over fresh bread and baking it straight away. A single pan goes from fridge to oven: no flipping, no frying, no last-minute scrambling at the stove.

It also leans on ingredients that already taste like the holidays without much help. Sun-dried tomatoes bring a sweet, concentrated tang, feta brings salt and creaminess, and the onion and spinach keep the whole thing fresh instead of heavy. There is no meat to brown and no sauce to simmer, which means one baking dish and about ten minutes of hands-on time before the pan goes into the fridge.

Whole-Grain Bread, Spinach and Feta: What Goes In

Whole-grain bread is the backbone here. Look for a sturdy loaf with a tight crumb; it holds its shape as it soaks and gives you something to bite into. Cut it into 1-inch cubes, about 7 cups from 10 slices. Sourdough or a country loaf works well too, though a soft, buttery bread will collapse into pudding.

Baby spinach wilts down fast, so cook it just until it gives up its water and press out the excess before it goes into the dish. Chopped kale can step in if you cook it an extra minute, and frozen spinach works when it is thawed and squeezed very dry. Out of sun-dried tomatoes? Roasted red peppers bring a similar sweet note. Feta can become goat cheese, and whole or 2% milk both make a fine custard.

Tips for a Christmas Breakfast Casserole That Sets Just Right

Press the bread down gently once the egg mixture is in the dish. You want every cube to drink up some custard, but you do not want to crush it into paste. Let the assembled dish sit while the oven heats if you are baking it right away, and give it the full overnight soak if you are not.

If the top is browning faster than the center is setting, tent the dish loosely with foil and give it another ten minutes. Pull it when the center is just set and a knife comes out clean, then let it stand five minutes before cutting. That rest is what gives you clean squares instead of a loose scoop.

Storing and Serving Your Veggie Egg Bake

Assemble the casserole through step 4, cover it, and refrigerate up to 24 hours. Bake it straight from the fridge and add 10 minutes to the bake time. Keep leftovers covered in the refrigerator and reheat portions gently in the oven or the microwave; the casserole also freezes well, so thaw it overnight before reheating.

Serve it straight from the pan with a fruit salad, a pitcher of orange juice and strong coffee. For a bigger brunch table, add roasted potatoes or a simple green salad, and put hot sauce on the side for anyone who wants a little heat with their eggs.