Overnight Blueberry Cinnamon Roll Casserole

Soft, custardy cinnamon roll pieces, tart blueberries, and melty cream cheese all baked into one dish. It tastes like a blueberry danish and a cinnamon roll had a very good morning together.

The real win here is the overnight rest. You do the work the night before, then slide it into the oven while coffee brews. It makes its own icing, so all you do is slice and serve.

Why This Casserole Works Every Time

That faint tang from the cream cheese keeps the whole thing from veering into too sweet territory, and the blueberries soften into jammy pockets without turning the bake soggy. The tops of the cinnamon roll pieces crisp up while the pieces underneath soak up the egg custard, so you get two textures in one bite.

The icing packet that comes with the rolls gets melted and drizzled over the top after baking. No extra glaze to make, no powdered sugar dust storm on the counter.

Ingredients

• 2 (17.5 oz) cans refrigerated cinnamon rolls with icing: any brand that includes icing. Save both icing packets.
• 1 cup fresh or frozen blueberries: if using frozen, keep them frozen right until you scatter them in.
• 4 oz cream cheese: cold, cut into small 1/2-inch cubes.
• 3 large eggs
• 1 cup whole milk: 2% works, but whole milk gives the custard more body.
• 1 tsp vanilla extract
• Pinch of salt

Variations / Substitutions

• Switch the fruit: raspberries, chopped peaches, or a mix of berries all work. Just keep the fruit volume the same so the custard sets properly.
• Add a little lemon: stirring 1 tsp finely grated lemon zest into the egg mixture brightens the whole dish against the sweetness.
• Dairy free: use a thick oat or almond milk and a good vegan cream cheese block. The texture will be slightly less rich but still good.

For a savory brunch twist, try a bacon and cheddar breakfast casserole instead.

How to Make Blueberry Cinnamon Roll Casserole

Step 1: Assemble the Casserole

Grease a 9×13-inch baking dish with butter or cooking spray. Open both cans of cinnamon rolls and set the icing packets aside. Cut each roll into quarters, so you end up with about 32 small pieces, and scatter them evenly into the dish. Toss in the cup of blueberries and dot the cold cream cheese cubes over everything. No need to be precise. It takes about 5 minutes.

The dish will look messy and uneven right now, which is exactly what you want. Those uneven layers are what give you some crusty tops and some gooey middles later.

Step 2: Whisk the Egg Mixture

In a medium bowl, whisk the 3 eggs, 1 cup milk, 1 tsp vanilla, and a pinch of salt until the mixture is smooth and a little frothy, about 1 minute. Pour it slowly and evenly over the cinnamon roll pieces, moving the bowl around so all the dry edges get wet.

When you pour, you’ll see the liquid pool around the pieces. Give the dish a gentle shake to help it settle into the gaps.

Step 3: Pour and Chill Overnight

Take a spatula or the back of a spoon and gently press down on the cinnamon roll pieces to submerge them a bit more. Cover the dish tightly with plastic wrap and refrigerate for at least 4 hours, or up to 12. This long soak lets the custard fully hydrate the dough.

You’ll notice the pieces puff slightly and the liquid thickens into the texture of a soft bread pudding, which is the sign it’s ready to bake.

Step 4: Bake and Slice the Casserole

Preheat the oven to 350°F (180°C). Uncover the dish and bake on the middle rack until the top is deep golden brown and the centre no longer jiggles when you shake the pan, 35 to 40 minutes. If the top browns too fast, tent it loosely with foil for the last 10 minutes. While it bakes, transfer the reserved icing packets to a bowl of warm water to soften them.

Remove the casserole from the oven and let it sit for 10 minutes so the custard finishes setting. Then snip the corner off both icing packets and drizzle the warm icing over the whole surface. Slice into 8 squares and serve while it’s still warm.

Tips for the Best Texture

• The cream cheese should be fridge-cold when you add it. If it warms up beforehand, it melts into a thin layer instead of staying in distinct creamy pockets.
• Overmixing the eggs can whip in too much air and leave a spongy top. Whisk just until combined.
• If you’re using a glass baking dish, the bake time might run closer to 40 minutes. A metal pan tends to shave off about 5 minutes.

Bake times by pan material:

Storing Leftovers

• Refrigerate: cover tightly and store in the fridge for up to 3 days. The texture stays surprisingly soft thanks to the custard.
• Reheating: a quick 30 to 45 seconds in the microwave works for a single portion. If you’re warming the whole dish, cover it with foil and reheat at 300°F (150°C) for about 15 minutes.

What to Serve With Blueberry Cinnamon Roll Casserole

Crispy bacon or breakfast sausage brings salt and fat that balance the sweet bake. If you want something lighter, a simple arugula salad with lemon vinaigrette cuts through the richness without competing. A big scoop of plain Greek yogurt on the side also works because the tang plays off the cinnamon icing.

Frequently Asked Questions

Can I assemble this the morning I want to bake it?

Yes. Let the assembled casserole sit at room temperature for 30 minutes instead of chilling overnight. The texture will be slightly less custardy, but it still bakes fine.

Why did my casserole turn out soggy?

That usually means the dish didn’t bake long enough. The centre should be fully set and spring back when pressed gently. If the top browns before the middle is done, tent it with foil and keep baking in 5-minute increments.

Can I use a different type of canned roll?

Yes, any refrigerated cinnamon rolls will work. Orange rolls or caramel rolls also work, though the flavor shifts sweeter and you may not need all the icing.

Do I have to use the icing packets?

You don’t have to, but the dish relies on that sweet finish. Without it, the top tastes more like plain bread pudding. A dusting of powdered sugar works in a pinch.

Blueberry Cinnamon Roll Casserole Recipe

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 35 minutes mins

Total Time 50 minutes mins

Servings: 8 servings

Calories: 380

Ingredients Method Notes

Ingredients

  

• 2 (17.5 oz) cans refrigerated cinnamon rolls with icing
• 1 cup fresh or frozen blueberries
• 4 oz cream cheese, cold, cut into 1/2-inch cubes
• 3 large eggs
• 1 cup whole milk
• 1 tsp vanilla extract
• Pinch of salt

Method

 

1. Grease a 9×13-inch baking dish. Cut cinnamon rolls into quarters and scatter in the dish. Add blueberries and dot with cold cream cheese cubes.
2. In a bowl, whisk eggs, milk, vanilla, and salt until smooth. Pour evenly over the roll pieces.
3. Gently press the pieces into the liquid, cover with plastic wrap, and refrigerate at least 4 hours or overnight.
4. Preheat oven to 350°F (180°C). Uncover the dish and bake 35 to 40 minutes until golden and set. Let rest 10 minutes, then drizzle the warmed icing packets over the top and slice.

Notes

The 4-hour minimum chill is not included in the prep or cook time. If using a metal pan, start checking for doneness at the 30-minute mark to avoid overbrowning.