Cranberry Sausage Stuffing Casserole

Something about the smell of sage hitting a hot skillet makes me think every kitchen should have a breakfast casserole tradition. Mine started on a groggy Christmas morning when I realized I had leftover stuffing, a tube of sausage, and a bag of cranberries that needed using. That random fridge audit turned into the most requested dish at every holiday gathering since. The tart little bursts of cranberry against savory sausage changed how I think about breakfast entirely.

My sister walked into the kitchen halfway through baking one year and said it smelled like Thanksgiving and Christmas got into a fistfight. She was not wrong, and she ate three helpings anyway.

Ingredients

• 1 pound breakfast sausage, casing removed: Pork gives you the most flavor but turkey works beautifully if that is what you have on hand.
• 1 medium onion, finely chopped: Sweetness that balances the tart cranberries and grounds the whole dish.
• 2 celery stalks, diced: Adds a quiet crunch and aromatic depth that you will miss if you skip it.
• 1 cup fresh or frozen cranberries: These little gems burst during baking and create pockets of bright tartness throughout the casserole.
• 6 cups cubed day old bread: French or sourdough holds up best to the custard without turning to mush.
• 1 1/2 cups whole milk: Whole milk matters here for richness and body.
• 1 cup heavy cream: This is what transforms breakfast into something worth waking up early for.
• 6 large eggs: The binding force that turns a pile of bread and sausage into a sliceable, satisfying casserole.
• 1 cup shredded sharp cheddar cheese: Sharp cheddar stands up to the bold flavors better than mild varieties ever could.
• 1/4 cup grated Parmesan cheese, optional: A salty, savory finish on top that makes people ask what your secret is.
• 2 tablespoons chopped fresh parsley: Brings freshness and a hit of green that the dish desperately needs.
• 2 teaspoons dried sage: The soul of this recipe, giving it that unmistakable holiday warmth.
• 1 teaspoon dried thyme: An earthy note that ties the herbs together without competing.
• 3/4 teaspoon kosher salt: Adjust depending on how salty your sausage is.
• 1/2 teaspoon ground black pepper: Just enough to warm things up without overpowering.
• 1/4 teaspoon crushed red pepper flakes, optional: A gentle hum of heat that most people will not pinpoint but will absolutely notice.
• Butter or nonstick spray for greasing: Do not skip this or you will be chiseling casserole off the dish later.

Instructions

Preheat and prep the dish:

Set your oven to 350 degrees Fahrenheit and generously grease a 9 by 13 inch baking dish with butter or nonstick spray so nothing sticks.

Brown the sausage:

Crumble the sausage into a large skillet over medium heat and cook until browned and fully cooked through, about 6 to 8 minutes, then transfer it to a plate with a slotted spoon.

Soften the aromatics:

In the same skillet with those flavorful sausage drippings, sauté the onion and celery until softened and fragrant, about 5 minutes, then pull it off the heat.

Build the base:

In a large bowl, toss together the cubed bread, cooked sausage, sautéed onion and celery, cranberries, parsley, sage, thyme, salt, pepper, and red pepper flakes if using until evenly distributed.

Whisk the custard:

In a separate bowl, whisk the milk, cream, and eggs until smooth, then stir in the shredded cheddar and Parmesan if you are using it.

Marry the two:

Pour the egg mixture over the bread mixture and gently toss everything until the bread is evenly moistened and soaking up all that richness.

Let it rest:

Transfer everything to the prepared baking dish, spread it out evenly, and let it sit for 10 minutes so the bread can really drink in the custard.

Bake until golden:

Bake uncovered for 45 to 50 minutes until the top is deeply golden and the center is set, not jiggly, then let it cool slightly before slicing.

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The year I dropped the whole casserole getting it out of the oven, my brother in law scooped it onto plates with a spatula and declared it rustic. We still laugh about it every Thanksgiving.

Making It Your Own

This recipe bends easily in whatever direction your fridge or your mood takes you. Swap the sausage for sautéed mushrooms and lentils for a vegetarian version that still feels hearty and complete. You could also trade the cheddar for Gruyere if you want to lean into something a little more elegant.

Serving Suggestions

A simple green salad with a bright vinaigrette cuts through the richness of this casserole beautifully. Fresh fruit on the side works just as well and requires zero effort, which is exactly what you want on a morning when you are already running the oven.

Storage and Leftover Wisdom

Leftovers reheat like a dream in a low oven or even the microwave, making this a gift that keeps giving through a busy weekend. Wrap the baking dish tightly with foil and refrigerate for up to 3 days.

• Sliced portions freeze well for up to 2 months when wrapped individually in foil.
• A quick sprinkle of water before reheating keeps the top from drying out.
• Always taste for salt before serving leftovers because the flavors settle and shift overnight.

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Some recipes earn a permanent spot in your rotation not because they are perfect but because they bring everyone to the table smiling and this one does that every single time.

Recipe Q&A Section

→ Can I assemble this casserole the night before?

Yes, you can prepare the entire casserole up to the point of baking, cover it tightly, and refrigerate overnight. In the morning, let it sit at room temperature for about 20 minutes while the oven preheats, then bake as directed. You may need to add 5–10 extra minutes of baking time if it goes into the oven cold.

→ Can I use dried cranberries instead of fresh?

Absolutely. If using dried cranberries, reduce the amount to 2/3 cup and soak them in hot water for about 10 minutes before draining and adding to the mixture. This helps rehydrate them so they blend better with the moist custard.

→ What type of bread works best for this dish?

Day-old French bread or sourdough works best because the slightly stale texture absorbs the egg mixture without becoming mushy. Cut the bread into even cubes and let it dry out overnight if possible. Avoid soft sandwich bread, as it breaks down too much during baking.

→ How do I make this vegetarian?

Omit the sausage and replace it with sautéed mushrooms or cooked lentils for substance and texture. You may want to add an extra pinch of sage or smoked paprika to compensate for the savory depth the sausage typically provides.

→ How should I store and reheat leftovers?

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave for about 60 seconds, or warm the whole dish in a 325°F oven covered with foil for 15–20 minutes until heated through.

→ Can I freeze this casserole?

Yes, you can freeze it either before or after baking. If freezing before baking, assemble the casserole, wrap it tightly in foil and plastic wrap, and freeze for up to 2 months. Thaw overnight in the refrigerator before baking. If freezing after baking, portion into individual servings and freeze for convenient reheating.