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    Home » Breakfast » Savory Breakfast

    Published Oct 15, 2024 by Heather Bilyeu

    Comforting Sourdough Breakfast Casserole with Apples and Sausage

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    This comforting sourdough breakfast casserole is perfect for a Southern breakfast or brunch - especially during the fall or holidays! Made with crusty sourdough bread, diced and unpeeled Granny Smith apples, savory sausage, milk, eggs, and cheddar cheese. This is baked in the oven at 350°F for 45 minutes. This warm, sweet, and savory breakfast will be something the whole family will love! Yields enough for 8-10 people.

    Sausage and apple breakfast casserole in a baking dish with a dish towel next to it.

    We love breakfast casserole in this house!

    We are big brunch fans! Sleeping in (which I am laughing at what we consider sleeping in now that we have a child lol - IYKYK), slow mornings, warm cups of coffee, and freshly baked breakfast casserole waiting in the oven. Whether it's overnight French toast sourdough breakfast casserole or a more savory version of your regular egg and cheese breakfast casserole - they are all so good!

    Since the temps have recently cooled off and fall is finally here, I decided to try out a new sweet and savory version using this season's main fruit and a Southern ingredient staple - APPLES!

    I used my base recipe for a breakfast casserole that uses sourdough bread. I love using sourdough 1.) because I make my own and we always have it on hand 2.) The sturdier bread holds up better when baked in a casserole keeping its shape, form, and structure with the added liquid from the milk base. It doesn't break down and get all mushy.

    So I diced up some Granny Smith apples, fried up some sausage, tossed it with some spices and cheddar cheese, and wha-laa - breakfast is served! My husband loved cutting out a big square just cold straight out of the fridge when we have leftovers and our child loves it as well.

    Welcome to my real-life kitchen, let us make breakfast together!

    Step one: sauté the sausage and apples.

    Sausage cooking in a pan on a stove.
    Place the sausage in a large skillet over medium heat...
    Browning sausage in a pan on the stove.
    ...and cook until browned completely, breaking up as you cook.
    Dicing apples and onions on a cutting board.
    While the sausage cooks dice your onion and apple.
    Sauting apples and onions in a skillet on the stove.
    Remove the sausage and the cool on a plate lined with paper towels. Add the onion, apples, and thyme into the skillet with the remaining grease and saute just until soft for 5-7 minutes.

    As a Southern cook and testing the recipe a couple of different ways, I found that the easy route with apples is okay! No need to take the extra time to peel them. Just quarter, remove the core, and dice into tiny bite-size chunks.

    🍏Why use granny smith apples? 🍏 Any time my mom baked with apples growing up, she always used Granny Smith. It is because they hold up when baking. They do not become mush or disintegrate into whatever dish you're making but hold their shape, and taste, and their distinct tart flavor stands out and compliments what it is paired with.

    Step two: Prep the bread and fillings.

    Cutting up sourdough bread on a cutting board.
    While the apples and onions are cooking, cube the sourdough bread. You can cut evenly with a knife or just roughly tear it into bite-size pieces.
    Eggs and milk in a mixing bowl.
    In a large mixing bowl, add the eggs, milk, salt, and pepper...
    A fork whisking together an egg and milk mixture for a casserole.
    ...whisk with a fork well.

    Step three: assemble and bake.

    Cubed sounding bread on the bottom of a greased casserole dish.
    To start the assembly, grease a 9x13 baking dish and layer the sourdough bread evenly on the bottom.
    Sausage layered on top of cubed bread in a casserole dish.
    Next, sprinkle the sausage evenly.
    Apples layered on top of sausage and bread in a casserole dish.
    Then add the onions and apples - making sure to distribute evenly.
    Cheese sprinkled on top of a breakfast casserole being layered inside a casserole dish.
    Sprinkle on the shredded cheddar cheese...
    The milk and egg mixture for a breakfast casserole poured over the bread and cheese inside a casserole dish before going into the oven to bake.
    ...and finally pour the egg and milk mixture over. Gently press down with a fork so that all the bread is coated.
    3 small plates of breakfast casserole with a gold fork eating out of one.
    Place in the oven at 350 and bake for 45 minutes just until golden brown and set.

    Remove from the oven and let cool for 10 minutes before serving. Any leftovers can be stored in the fridge covered for up to 3 days and it is delicious and eaten cold!

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    A wooden spoon scooping out a breakfast casserole from a baking dish.

    Comforting Sourdough Breakfast Casserole with Apples and Sausage


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    • Author: Heather Bilyeu
    • Total Time: 75 minutes
    • Yield: 8-10
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    Description

    This comforting sourdough breakfast casserole is perfect for a Southern breakfast or brunch - especially during the fall or holidays! Made with crusty sourdough bread, diced and unpeeled Granny Smith apples, savory sausage, milk, eggs, and cheddar cheese. This is baked in the oven at 350°F for 45 minutes. This warm, sweet and savory breakfast will be something the whole family will love!


    Ingredients

    Scale
    • 1 Pound Sausage
    • 2 Medium Granny Smith Apples - cored and diced
    • ½ Medium Onion - diced
    • ¼ Teaspoon Thyme
    • 8 Large Eggs
    • 1 ½ cups Whole Milk
    • ¼ Teaspoon Salt
    • ¼ Teaspoon Freshly Cracked Black Pepper
    • 2 cups Shredded Cheddar Cheese
    • 4-5 Cups Sourdough Bread


    Instructions

    1. Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
    2. In a large skillet over medium heat, cook the breakfast sausage until browned and fully cooked, breaking it up into crumbles as it cooks. Once done, remove the sausage from the skillet and set aside.
    3. In the same skillet, add the diced apples and chopped onion. Sauté over medium heat until the onions are soft and translucent, and the apples are slightly softened, about 5-7 minutes. Stir in the thyme and cook for another minute. Remove from heat.
    4. In a large bowl, whisk together the eggs, milk, salt, and pepper until well combined.
    5. To the baking dish - add in the cubed bread. Then layer on the sausage then add the cooked apples and onions evenly on top. Sprinkle with the cheddar cheese and then pour the milk mixture over everything. Press down with a fork gently to make sure all of the bread evenly soaks up the egg mixture.
    6. Bake the casserole in the preheated oven for 40-45 minutes, or until the top is golden and the center is set.
    7. Allow the casserole to cool for about 10 minutes before slicing and serving.
    • Prep Time: 30 minutes
    • Cook Time: 45 minutes
    • Category: Breakfast
    • Method: Baking
    • Cuisine: American

    Nutrition

    • Serving Size: 1 square
    • Calories: 350
    • Sugar: 6.8 g
    • Sodium: 639.4 mg
    • Fat: 17 g
    • Carbohydrates: 29.9 g
    • Fiber: 2.1 g
    • Protein: 18.7 g
    • Cholesterol: 184.3 mg

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    Filed Under: Breakfast, Christmas, Fall, Savory Breakfast, Southern, SuperBowl/Tailgate, Thanksgiving Tagged With: Apples

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    Hi, I'm Heather! Grab a glass of wine, a blanket, and a cozy seat on your back porch. I am so glad you are here! Born and raised in Kentucky and with proper southern roots, my love for entertaining and hospitality runs deep within my soul. There is nothing that I love more than having people around my table and loving them through food and drink!

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