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This mini breakfast casserole is made with crusty bread, cooked sausage, and melted cheese. It’s an easy, flavorful dish that’s perfect for one or two people and makes a hearty way to start the day.

a small breakfast casserole on a table with a cup of coffee and a fork.

Why You’ll Love This Recipe

  • Convenient: Prep it the night before and in the morning, all you need to do is bake it.
  • Flavorful: The overnight soak allows the bread to absorb the egg mixture, making every bite rich and delicious.
  • Versatile: Customize it with your favorite ingredients – swap sausage for bacon, add vegetables, or try a mix of cheeses.
  • Perfectly Sized: Designed as a breakfast casserole for one, it’s portioned just right with no leftovers or waste.

Overnight breakfast casseroles make mornings easier, and this one is a favorite of mine.

I use crusty bread, sausage, an egg, cheese, and a creamy milk mixture. Everything soaks together overnight, so by morning, all I have to do is bake it for a warm, flavorful breakfast.

This small casserole is just the right size for one, no leftovers and nothing wasted.

Looking for more small batch and single serving breakfast recipes? Try our mini French toast casserole, breakfast bagel, small berry filled Dutch baby, cheesy baked eggs, French breakfast puff, or banana pancakes for one.

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Ingredients

If you have any ingredients leftover from this single serve breakfast casserole recipe, check out our Leftover Ingredients Recipe Finder.

  • Pork Sausage: Adds a flavorful, savory element to the casserole. You can substitute with turkey sausage or vegetarian sausage for a lighter or meat-free option. Leftover sausage? Use it in recipes like pork stir fry for one or a single biscuit with sausage gravy.
  • Egg: A single large or extra-large egg works perfectly as the binder for this casserole, holding all the ingredients together.
  • Milk: Whole milk or 2% milk is ideal, but non-dairy options like almond or oat milk can be used if you prefer.
  • Bread: Crusty bread varieties like a small loaf French bread are best because they soak up the egg mixture without becoming too soggy. Day-old bread works great here, reducing waste and enhancing texture.
  • Cheese: Choose your favorite cheese! Cheddar is my go-to for its rich flavor and excellent meltability, but other cheeses like mozzarella, Monterey Jack, or even a spicy pepper jack would work well.
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Recipe Variations

Although this mini breakfast casserole is delicious as is, you might like to try these variations:

  • Add Some Heat: Mix in red pepper flakes or diced jalapeños.
  • Vegetarian Option: Swap the pork sausage for your favorite vegetarian sausage or omit it entirely and load up on extra vegetables.
  • Loaded Casserole: Enhance the dish with sautéed mushrooms and fresh spinach for added flavor and nutrition.
  • Cheese Lover’s Casserole: Use a blend of cheeses like mozzarella, cheddar, and pepper jack for a rich, melty breakfast casserole for one.

How To Make A Breakfast Casserole

These step-by-step photos and instructions help you visualize how to make an individual breakfast casserole. See the recipe box below for ingredient amounts and full recipe instructions.

  1. Cook the Sausage: Brown the sausage in a skillet over medium heat until fully cooked and no longer pink. Transfer to a plate lined with paper towels to drain excess grease, then set aside.
pork cooking in a small skillet.
  1. Prepare the Egg Mixture: In a medium bowl, beat the egg. Whisk in the milk, salt, and pepper until well combined.
milk and eggs whisked together in a small mixing bowl.
  1. Assemble the Casserole: Butter a 5×5-inch baking dish. Arrange the bread cubes evenly in the dish, then sprinkle the cooked sausage and shredded cheese over the top. Pour the egg mixture evenly over the bread, ensuring everything is coated.
placing bread cubes in a small baking dish and pouring egg, sausage and cheese over the top.
  1. Refrigerate: Cover the dish tightly and refrigerate overnight to allow the flavors to meld.
  2. Bake the Casserole: The next day, remove the casserole from the refrigerator and let it sit at room temperature for about 30 minutes. Preheat your oven to 350°F (177°C). Bake the casserole, covered, for 25–30 minutes, or until the egg mixture is set and the top is lightly golden.
  3. Serve Warm: Remove from the oven and enjoy the casserole while it’s still warm.
    a mini breakfast casserole on a small baking sheet.

    Expert Tips

    • Soak Bread Evenly: Make sure the bread is fully coated in the egg mixture without excess pooling, too much liquid can make it soggy.
    • Bring to Room Temperature: If chilled, let the casserole sit out for 30 minutes before baking to ensure even cooking.
    • Mix In Extras: Add spices like paprika or garlic powder, or toss in diced vegetables like bell peppers or onions for more flavor.
    • Use Fresh Cheese: Shred your own cheese for better melting and flavor, pre-shredded can affect texture.
    • Baking Dish Options: A 5×5-inch baking dish is ideal, but two 10-ounce ramekins work well too.
    a small breakfast casserole with sausage and cheese in a white baking dish.

    RELATED:20 Single Serving Breakfast Recipes Worth Waking Up For

    Frequently Asked Questions

    What’s the best type of bread to use in a small breakfast casserole?

    While crusty bread like French or sourdough works best, you can also use brioche, challah, or even day-old sandwich bread.

    Can I make this breakfast casserole without sausage?

    Yes, you can leave out the sausage for a vegetarian option or replace it with cooked vegetables like bell peppers, spinach, or mushrooms.

    Can I prepare this mini breakfast casserole in the morning instead of overnight?

    Yes, let the casserole soak for at least 30 minutes to allow the bread to absorb the custard mixture before baking.

    How do I store leftover breakfast casserole?

    Cover and refrigerate any leftovers in an airtight container. Reheat in the oven or microwave until warmed through.

    Can I double this individual breakfast casserole recipe?

    Certainly! Use a 6×8-inch baking dish and double the ingredients for additional servings.

    Ways To Use Leftover Ingredients

    If you have any ingredients leftover from this recipe, check out our Leftover Ingredients Recipe Finder or you might like to consider using them in any of these single serving and small batch recipes:

    RELATED:  15 Easy Single Serving Dessert Recipes

    If you’ve made this Breakfast Casserole For One or tried any recipe from One Dish Kitchen, I’d love to hear your feedback! Please rate the recipe and share your thoughts in the comment section below.

    Also, if you take a picture please tag us on Instagram (@onedishkitchen) we’d love to see it!


    Cooking For One Made Easy
    Because you’re worth it

    Mini Breakfast Casserole

    4.8 from 31 votes
    By: Joanie Zisk
    Prep: 12 hours
    Cook: 30 minutes
    Cooling time: 5 minutes
    Total: 12 hours 35 minutes
    Servings: 1 serving
    Enjoy a hearty make-ahead breakfast casserole filled with crusty bread, flavorful sausage, egg, and melted cheese. This single serving recipe is ideal for a satisfying morning meal at home.

    Watch How To Make This

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    Equipment

    Ingredients 
     

    • 6 ounces ground pork sausage -cooked and drained of fat
    • 1 large egg
    • ¾ cup milk
    • teaspoon kosher salt
    • teaspoon coarsely ground black pepper
    • 2 cups cubed French Bread
    • ½ cup shredded Cheddar cheese or Monterey Jack cheese

    Instructions 

    • Cook the Sausage: Use a medium-sized skillet to cook the sausage until it's no longer pink. Then, transfer it to a plate lined with paper towels to drain and set aside.
    • Prepare the Egg Mixture: In a small bowl, beat the egg. Whisk in the milk, salt, and pepper.
    • Prepare the Baking Dish: Butter a 5-inch baking dish. Arrange the bread in the dish, cutting it to fit if necessary.
    • Assemble the Casserole: Sprinkle the cooked sausage and cheese over the bread. Then, evenly pour the egg mixture over everything. Cover the dish and refrigerate it overnight.
    • Bake the Casserole: The next day, take the casserole out of the refrigerator and let it reach room temperature, about 30 minutes. Preheat your oven to 350°F (177°C). Bake the casserole, covered with aluminum foil, for 25 to 30 minutes, or until the egg is set.
    • Serve and Enjoy: Remove the casserole from the oven and serve it hot.

    Notes

    • Soak Bread Evenly: Make sure the bread is fully coated in the egg mixture without excess pooling, too much liquid can make it soggy.
    • Bring to Room Temperature: If chilled, let the casserole sit out for 30 minutes before baking to ensure even cooking.
    • Mix In Extras: Add spices like paprika or garlic powder, or toss in diced vegetables like bell peppers or onions for more flavor.
    • Use Fresh Cheese: Shred your own cheese for better melting and flavor, pre-shredded can affect texture.
    • Baking Dish Options: A 5×5-inch dish is ideal, but two 10-ounce ramekins work well too.
    If doubling the recipe, use either two 5×5-inch baking dishes or one 6×8-inch baking dish.

    Nutrition

    Serving: 1serving, Calories: 747kcal, Carbohydrates: 47g, Protein: 59g, Fat: 64g, Saturated Fat: 25g, Cholesterol: 381mg, Sodium: 2078mg, Potassium: 911mg, Fiber: 2g, Sugar: 12g, Vitamin A: 1187IU, Vitamin C: 1mg, Calcium: 582mg, Iron: 5mg

    The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

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    Welcome!

    Iโ€™m Joanie, chef, author of The Ultimate Cooking for One Cookbook, and creator of One Dish Kitchen. With 10+ years of experience developing single serving and small batch recipes, Iโ€™m passionate about making cooking for one simple and enjoyable. So glad youโ€™re here!

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    4.78 from 31 votes (12 ratings without comment)

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    56 Comments

    1. Betty R Maas says:

      We love this recipe! Just the right size for the two of us.

    2. Ken Wiencko says:

      I made the casserole this morning, but I used leftover home fries instead of bread. I prepared it this morning and popped it right in the oven. It was delicious. Next time, I will try it with some kind of bred and compare.

      1. Joanie Zisk says:

        So glad to hear you enjoyed it! Using leftover home fries is such a smart idea, itโ€™s such a flexible recipe and perfect for making it your own!

    3. Miki Whitehair says:

      Very disappointing. I should have known not to use so much sausage – nearly a half pound per person is way too much. The bread never got past soggy. The recipe needs to stress using two pans for doubling the recipe. I used one, and after an hour it was still not done. And, after all that, it had no taste. Will definitely not try again.

      1. Joanie Zisk says:

        As mentioned in the FAQ section, if doubling the recipe, we recommend using a 6ร—8-inch baking dish to ensure even cooking. Doubling the recipe without adjusting the dish size as mentioned, or using two dishes is likely why the bread remained soggy and the casserole didnโ€™t cook properly.