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    Home » Recipes » Breakfast/Brunch

    Overnight Mixed Berry French Toast Casserole

    Published: Apr 10, 2014 · Modified: Oct 30, 2024 by Lauren Kelly · This post may contain affiliate links.

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    This Overnight Mixed Berry French Toast Casserole is that perfect dish to make for Easter or Mother's Day brunch, or pretty much any day of the year! This delicious make-ahead breakfast casserole is always a crowd pleaser and take minutes to prepare.

    Mixed Berry French Toast Casserole in a white casserole dish with a fork filled with casserole on the bottom and the title on top.Pin

    Simple to prepare, colorful and lightened up!

    This Overnight Mixed Berry French Toast Casserole is everyone's favorite. It is a perfect dish to bring to potlucks, brunches and holiday parties.

    If you are looking for some other make ahead healthy breakfast recipes, you will love this Veggie Crustless Quiche, Gingerbread Chocolate Overnight Oats and definitely this Mushroom Gruyere Crustless Quiche!

    These would all be even better with this Apple Chai Latte, Low Carb Bulletproof Hot Chocolate or even this Spiked Apple Cider!

    Also, my cookbooks are both on sale now and would make a great gift! The Everything Wheat Free Diet Cookbook and The Greek Yogurt Cookbook are both the lowest prices I have seen!

    Why You Should Make This Overnight Mixed Berry French Toast Casserole

    This delicious French toast casserole is so simple to prepare with easy ingredients you probably already have in your house.

    This is especially convenient on those busy days when you don't have the time in the morning to prep it. That is why I make this for Easter, Christmas and all of my kids' birthdays when I don't have the time to prep it that early in the morning.

     This Overnight Mixed Berry French Toast Casserole recipe is lightened up with Greek yogurt so it's a little healthier than the standard casserole. Everyone loved my Overnight French Toast Casserole so much (it's in The Greek Yogurt Cookbook!) that I knew I had to add some fruit to it.  

    You really don't need any additional maple syrup, this french toast is sweet enough on its own.  It looks fancy enough for guests, but takes minutes to prepare.  

    Horizontal picture of French toast casserole in a white casserole dish.Pin

    Recipe Ingredients for This Overnight Mixed Berry French Toast Casserole

    • Stale loaf bread- Stale bread absorbs more of the egg mixture than fresh bread will and it's also a great way to use up old bread!
    • Eggs- I use farm raised, organic eggs. Eggs add a complete source of protein.
    • Plain Greek yogurt- My favorite! Greek yogurt adds protein and a smooth texture.
    • Almond milk- or any other milk of your choice. I used unsweetened almond milk to make sure there are no added sugars or ingredients in this french toast casserole.
    • 100% pure maple syrup- This Maple Syrup is my favorite. This is a great unrefined, natural sweetener that is high in antioxidants and minerals.
    • Frozen mixed berries- adds antioxidants, vitamins and lots of color!
    • Butter- I always use 100% grass fed, organic unsalted butter which just plain old tastes better!
    • Ground cinnamon - One of my favorite spices, it always adds so much to my baked goods. I love this one.
    • Flour- I used all purpose flour but you can use a light flour of your choice, almond flour and gluten free flour are also great options.

    Recipe FAQ's and Recipe Tips

    How do I prevent my overnight mixed berry French toast casserole from getting soggy?

    Stale bread will definitely help prevent it from getting soggy. Also, making sure you don't use too many eggs will also help.

    What if I only have fresh bread?

    You can leave the bread out on the counter overnight to harden a bit. This will help prevent it from getting soggy.C

    Can I freeze my French toast casserole?

    Yes, but I recommend you cooking the casserole first and then freezing any left overs in an airtight container.

    What type of bread should I use to make this overnight mixed berry french toast?

    I used Challah bread and 100% whole what bread to make this casseroleand boy was it fluffy and incredible. My friend just told me that she made this using Trader Joe's Brioche bread and was in love with that as well.

    Related Recipes

    Overnight French Toast Casserole from Lauren Kelly Nutrition

    The Best Healthy French Toast Recipe from The Healthy Maven 

    Keto Pumpkin French Toast Sticks from All Day I Dream About Food

    Low Carb Cloud French Toast from Sugar Free Mom

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    Horizontal picture of French toast casserole in a white casserole dish.Pin

    Overnight Mixed Berry French Toast Casserole

    This delicious make-ahead breakfast casserole is always a crowd pleaser and take minutes to prepare.
    5 from 12 votes
    Print Pin Rate
    Course: Breakfast, brunch, main dish, vegetarian
    Cuisine: American
    Prep Time: 10 minutes minutes
    Total Time: 55 minutes minutes
    Servings: 8 servings
    Calories: 195kcal
    Author: Lauren Kelly

    Ingredients

    • 1 loaf stale bread
    • 5 whole cage-free eggs
    • 2 cage-free egg whites
    • 1 cup nonfat plain Greek yogurt
    • 1 cup almond milk
    • ¾ cup 100 percent pure maple syrup
    • 16 ounces bag of frozen organic mixed berries
    • 2 tablespoons cold butter diced
    • ¼ cup unrefined brown sugar packed
    • 1 teaspoon ground cinnamon
    • ¼ cup all-purpose flour you can use almond flour

    Instructions

    • Take berries out of the freezer and defrost for at least 30 minutes.
    • Spray a 9" × 13" casserole dish with organic nonstick cooking spray.
    • Tear bread into pieces and spread them throughout the casserole dish in an even layer.
    • In a large bowl, mix eggs, egg whites, Greek yogurt, milk, and maple syrup. Mix very well until smooth and thoroughly combined. Pour egg mixture completely over bread.
    • In a small bowl, mix butter, brown sugar, cinnamon, flour, and pecans, if using. Mix until all ingredients are combined, even if still lumpy.
    • Add defrosted berries on top of bread mixture.
    • Sprinkle the butter mixture on top of the bread. Cover and refrigerate overnight. If cooking the same day, make sure to refrigerate at least 30 minutes before baking.
    • 6. In the morning, preheat the oven to 350°F. Bake for 45 minutes until golden brown and the middle of the dish is set. Serve immediately with maple syrup, if desired.

    Notes

    If you are making this the night before, make sure you cover it toughly with aluminum foil to prevent it from drying out.
    You can also use the same amount of fresh berries in this casserole.
    Make sure the butter is cold, it yields a crisper, less soggy casserole.

    Nutrition

    Calories: 195kcal | Carbohydrates: 17g | Protein: 8g | Fat: 6g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 111mg | Sodium: 147mg | Potassium: 136mg | Fiber: 2g | Sugar: 13g | Vitamin A: 265IU | Vitamin C: 2mg | Calcium: 100mg | Iron: 1mg
    Tried this Recipe? Pin it for Later!Mention @lkellynutrition or tag #lkellynutrition!
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    Reader Interactions

    Comments

    1. Amelia

      June 13, 2024 at 10:48 am

      5 stars
      This was a hit at our Sunday brunch! The combination of maple syrup and mixed berries made it taste like a dessert. Plus, the Greek yogurt added a nice tangy twist!

      Reply
      • Lauren Kelly

        June 13, 2024 at 12:15 pm

        I agree, it's pretty decadent like a dessert! Thanks so much!

        Reply
    2. Catherine

      June 13, 2024 at 9:41 am

      5 stars
      I used whole milk instead of almond and it came out great! It was so delicious and a great way to start summer!

      Reply
      • Lauren Kelly

        June 13, 2024 at 12:16 pm

        So happy you liked it, Catherine!

        Reply
    3. Rina

      June 13, 2024 at 7:40 am

      5 stars
      This is definitely a must-try! Incredibly delicious and satisfying! Great way to start our day.

      Reply
      • Lauren Kelly

        June 13, 2024 at 12:16 pm

        Thank you Rina!

        Reply
    4. Abby

      November 21, 2023 at 8:49 am

      5 stars
      Loved that I could make this the night before or same day. Was so delicious. My whole family loved it.

      Reply
    5. Carrie

      November 21, 2023 at 8:25 am

      5 stars
      We all loved the addition of berries! Truly fabulous.

      Reply
      • Lauren Kelly

        November 21, 2023 at 8:40 am

        Thank you!

        Reply
    6. Sha

      November 21, 2023 at 8:24 am

      5 stars
      One of the best breakfast casserole recipes I've tried! They're easy and super convenient! Perfect for sleepover

      Reply
    7. Jen

      January 23, 2022 at 11:23 pm

      5 stars
      It’s hard not to keep this delicious casserole to myself, it’s so good! One of our favorite breakfast rotations!

      Reply
      • Lauren Kelly

        January 24, 2022 at 7:05 am

        So happy you like it Jen!

        Reply
    8. Samantha

      January 22, 2022 at 4:34 pm

      5 stars
      I've made quite a few overnight french toast casseroles over the years, but this was my first time to try one with berries. It was a huge hit! My kids are already asking when I can make it again. 🙂

      Reply
      • Lauren Kelly

        January 24, 2022 at 7:05 am

        Happy to hear that, Samantha! Thank you!

        Reply
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    5 from 12 votes (2 ratings without comment)

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