This blueberry French toast casserole is everything you love about French toast in a single dish. Its sweet and savory ingredients create a soft, custardy interior and slightly crispy exterior with just the perfect amount of sweetness.

If you love French toast, but don’t love the effort, you’re going to love this blueberry French toast casserole recipe! It has all of the flavors and textures of classic French toast baked into a single dish, and it makes multiple servings, making it great for crowds.
It’s a great brunch idea for a family celebration, Easter weekend, or Christmas morning. Serve it with bacon, eggs, yogurt, granola, and fresh blueberries for an absolutely delicious weekend feast.

Why You’ll Love It
- Saves Time – This one-pan recipe cuts down on prep and cleanup time.
- Serves a Crowd – It makes 8 servings, making it perfect for a weekend brunch or holiday breakfast.
- Keeps Well – It can be made ahead of time and keeps well in the fridge and freezer.

Ingredients + Substitutions
- Bread – To make the French toast and add some complex carbohydrates. I used French bread, but brioche bread, sourdough bread, or rustic Italian bread will work well.
- Blueberries – To add some fruit and fiber. I used frozen berries, but fresh or frozen blueberries will work well.
- Eggs – To make the egg custard mixture and add some protein.
- Milk – To add some extra protein and make the custard mixture. I used cow’s milk, as it adds more protein and a richer texture, but you can use non-dairy milk, such as almond milk or oat milk, if needed.
- Maple Syrup – To sweeten and serve, honey or brown sugar will also work well.
- Cinnamon – To add a bit more sweetness and enhance the flavor.
- Vanilla Extract – To add more flavor.
- Lemon Zest – To add some brightness, although optional.
- Salt – To balance the flavors.
Dietary Adaptions
To Make it Gluten-Free: Use certified gluten-free bread.
To Make it Dairy-Free: Swap the milk for almond milk and the butter for coconut oil or avocado oil.

Red’s Nutrition Tip
If you’re confused about bread, you’re not alone! While most people have heard that sourdough is healthy, many people remain confused about the different bread options and what ingredients to look for and, potentially, avoid. Fortunately, I’ve got a full guide on how to buy healthy bread and a breakdown of the differences between whole wheat vs. whole grain vs. multigrain bread so you can choose the bread option that works best for you.
Serving Suggestions
This blueberry French toast casserole is a good source of carbohydrates, fiber, and fat, with moderate levels of protein. To make it a more balanced meal, I suggest serving it with a side of plant or animal protein. Plus, it can easily be adapted to suit your personal dietary needs, for example:
- To make it higher in protein, serve it with a generous dollop of yogurt, Greek yogurt, or Skyr on top, or a side of scrambled eggs and/or pork or turkey bacon.
- To make it lower in fat, use 0% milk or almond milk instead.
- To make it extra sweet, top it with a cream cheese icing, with whipped cream, powdered sugar, and/or homemade blueberry sauce or jam.
Can I prep it ahead of time?
Yes, you can make this an overnight French toast casserole. Simply prep all of the ingredients as per instructions step #1 to #4, then cover the baking dish with plastic wrap, and refrigerate overnight for up to 12 hours. When ready to bake, remove the baking dish from the fridge, remove the plastic wrap, transfer to the oven, and bake as per step #6 outlined in the instructions.

Storage + Reheating
To Refrigerate: Allow the casserole to cool completely and then cover with aluminum foil or plastic wrap, or transfer it to an airtight container, and store it in the fridge for up to 5 days.
To Freeze: To freeze blueberry French toast casserole, cool completely, cover the baking dish with plastic wrap and/or aluminum foil, and then place the entire baking dish in a freezer-safe bag for up to 3 months. To freeze leftovers or individual portions, transfer them to airtight containers and store them in the freezer.
To Reheat: To reheat the French toast casserole whole, allow it to thaw completely, and then cover the baking dish with aluminum foil and warm it in the oven at 350°F for 20-25 minutes. To reheat individual portions, place a thawed portion in an oven-proof baking dish in the oven for 5-10 minutes or in the microwave in a microwave-safe dish for 1-2 minutes.






































































