Cranberry Sausage Breakfast Casserole

The kitchen smelled like chaos the morning after Thanksgiving, with leftover cranberries sitting on the counter and a half eaten loaf of sourdough going stale beside them. I crumbled some breakfast sausage into a skillet, tossed in those cranberries, and wondered if the combination would work or if I was about to ruin a perfectly good morning. The casserole that came out of the oven fifty minutes later was so good that it completely overshadowed the turkey from the night before.

My sister in law walked into the kitchen just as I pulled the golden topped casserole from the oven, and she stood there with her coffee mug, not saying a word, just staring at it. We ate standing at the counter, burning our mouths because neither of us wanted to wait the full ten minutes.

Ingredients

• 1 lb breakfast sausage, casings removed: Mild gives you a gentle base, but spicy sausage adds a kick that cuts through the richness of the custard beautifully.
• 1 medium onion, diced: Onion cooked down in sausage drippings is the secret foundation of flavor here.
• 2 celery stalks, diced: Celery brings a freshness and slight crunch that balances the heaviness of the eggs and cream.
• 1 cup dried cranberries: They plump up during baking and create little bursts of tart sweetness throughout every bite.
• 2 tablespoons fresh parsley, chopped: Fresh parsley at the end brightens everything and makes it taste less heavy.
• 8 cups day old bread, cubed: Sourdough is my favorite choice because its tang plays wonderfully with the cranberries and sausage.
• 1 1/2 cups whole milk and 1 cup heavy cream: The combination creates a luxurious custard that is rich without being overwhelmingly heavy.
• 6 large eggs: They bind everything together into a cohesive, sliceable casserole.
• 1 cup shredded cheddar cheese: Sharp cheddar folded in at the end creates gooey pockets of melted cheese throughout.
• 2 tablespoons unsalted butter, melted: Butter mixed into the custard adds richness and helps the top brown perfectly.
• 1 teaspoon each dried sage and thyme: These two herbs give it that unmistakable holiday stuffing flavor.
• 1 teaspoon salt and 1/2 teaspoon black pepper: Seasoning generously is crucial because the bread absorbs a lot of salt.

Instructions

Preheat and prepare:

Set your oven to 350 degrees F and grease a 9 by 13 inch baking dish with butter, making sure to get into the corners.

Brown the sausage:

Crumble the sausage into a large skillet over medium heat and cook until fully browned, breaking it into bite sized pieces as it cooks, about 6 to 8 minutes. Transfer the sausage to a plate but leave those flavorful drippings right where they are.

Soften the aromatics:

Add the diced onion and celery to the same skillet and sauté in the sausage drippings until soft and translucent, about 5 minutes, then remove from heat.

Build the base:

In a large mixing bowl, toss together the bread cubes, cooked sausage, sautéed onion and celery, dried cranberries, parsley, sage, thyme, salt, and pepper until evenly distributed.

Whisk the custard:

In a separate bowl, whisk the eggs, milk, heavy cream, and melted butter until completely smooth and well combined.

Combine everything:

Pour the egg mixture over the bread mixture and toss gently until every piece of bread is coated. Fold in the shredded cheddar cheese so it is evenly scattered throughout.

Assemble and rest:

Transfer the entire mixture into your prepared baking dish, pressing it down gently. You can cover and refrigerate it at this point overnight if you want to bake it the next morning.

Bake until golden:

Bake uncovered for 45 to 50 minutes until the top is deeply golden brown and the center is set, not jiggly, when you gently shake the dish.

Rest and serve:

Let it sit for 10 minutes before cutting into squares so the custard has time to settle and the pieces hold their shape.

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One Christmas morning, my nephew who usually only eats cereal had three helpings of this and asked if we could have it every weekend. That was the moment this casserole stopped being a leftover experiment and became a family tradition.

Make It Your Own

Diced apples folded in with the cranberries add another layer of sweetness and a pleasant crunch that works surprisingly well. Chopped pecans scattered over the top before baking give it a nutty finish that makes the whole dish feel more special.

Serving Suggestions

A bottle of hot sauce on the table is nonnegotiable in my house because the vinegary heat cuts straight through the richness of the casserole. A simple green salad with a bright vinaigrette on the side helps balance out what is admittedly a very indulgent plate of food.

Storage and Reheating

Leftovers keep beautifully in the refrigerator for up to four days, and individual slices reheat in the microwave in about ninety seconds. For longer storage, wrap individual portions tightly and freeze them for up to three months.

• Reheat from frozen in a 350 degree oven covered with foil for about 25 minutes.
• A sprinkle of extra cheese on top before reheating brings it back to life beautifully.
• Always let frozen portions thaw overnight in the fridge for the best texture.

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This casserole turned a random post Thanksgiving morning into one of my favorite food memories, and now it is the dish everyone requests when the holidays roll around.

Recipe FAQs

→ Can I assemble this casserole the night before?

Yes, this casserole is perfect for making ahead. After transferring the mixture to your greased baking dish, cover it tightly and refrigerate overnight. In the morning, uncover and bake at 350°F for 45-50 minutes until golden and set in the center. You may need to add 5 extra minutes of baking time if it goes straight from the fridge to the oven.

→ What type of bread works best for this dish?

Sturdy, crusty breads work best because they hold their shape when soaked in the egg custard. Sourdough is an excellent choice as it adds a pleasant tang that complements the richness. French bread, country-style loaves, or any artisan bread cut into 1-inch cubes will also work well. Avoid soft sandwich bread, which can become too mushy.

→ Can I use fresh cranberries instead of dried?

Dried cranberries are recommended because they provide concentrated sweetness and a chewy texture without adding excess moisture. Fresh cranberries would release a lot of liquid during baking, which could make the casserole soggy and overly tart. If you only have fresh cranberries, consider cooking them down with a little sugar first to create a quick compote, then fold them in gently.

→ How do I know when the casserole is fully cooked?

The casserole is done when the top is golden brown and the egg custard is set in the center. You can test this by gently shaking the dish—the center should not jiggle liquidly. A knife inserted into the middle should come out clean. The internal temperature should reach 160°F. Always let it rest for 10 minutes before cutting to allow the custard to finish setting.

→ What can I substitute for breakfast sausage?

You can use ground turkey sausage, chicken sausage, or even plant-based sausage crumbles as alternatives. If using plain ground meat, be sure to add extra seasonings like sage, fennel seed, and a pinch of red pepper flakes to mimic sausage flavor. For a meatless version, sautéed mushrooms with herbs provide a satisfying savory depth.

→ How should I store and reheat leftovers?

Store leftover casserole in an airtight container in the refrigerator for up to 3 days. To reheat, cover a portion with foil and warm in a 350°F oven for about 15 minutes, or microwave individual servings for 1-2 minutes. The oven method helps maintain the texture of the bread cubes better than microwaving. You can also freeze individual portions wrapped tightly for up to 2 months.