Southern Breakfast Casserole Recipe – Filled with eggs, sausage, cheese, and tender buttermilk biscuits, this makes the perfect breakfast! Made even easier as a make ahead breakfast casserole, it will quickly become a family favorite!

Baking dish filled with golden cheesy Breakfast Casserole being scooped with a wooden spoon

Southern Breakfast Casserole is one of my favorite make ahead breakfast casseroles. It’s not only extremely delicious, it’s a great dish to serve when feeding a crowd and on holidays. I like knowing breakfast or brunch is taken care of while I’m enjoying time with family or friends during holidays and special weekends. I’m thankful my mother shared this with me many years ago.

My mother has always been a wonderful hostess. She has the gift of welcoming guests and immediately making them feel right at home. Growing up, I was always amazed at how she could make every dinner party she hosted seem as if it was an everyday occurrence for her and having drop in guests was never an issue. I learned that by being prepared for such events in advance, she was calm, cool, and able to enjoy every minute of those special times.

I remember asking her the first Christmas after Sam was born how in the world she managed to have such a huge breakfast ready on Christmas morning when we were children. Even though Sam was just a month old, I was amazed at how the schedule I’d followed for years went right out the window that year. That’s when Mama clued me in on the importance of keeping things simple, planning ahead for make-ahead items, and the beauty of enjoying the moment. 

That was many years ago and those make-ahead dishes are still some of our favorites. Take this breakfast casserole recipe. There have to be a million and one types of breakfast casseroles and it seems like every family has a favorite recipe of their own.

This version came along one year when I realized that I didn’t have bread on hand that my grandmother’s recipe uses, so I improvised and baked biscuits to use instead. I haven’t used anything but the biscuits since!

Because, just like Mama’s tips on how to enjoy Christmas morning without missing out on all the fun, when you learn something life-changing like that, you don’t go back to the old ways!

Make Ahead Southern Breakfast Casserole Recipe

For this breakfast casserole, I use my essential recipe for three ingredient buttermilk biscuits.

You can prepare this breakfast casserole two to three days in advance and keep it tightly wrapped in the refrigerator. Then, on the morning you are serving, just bake for about 40-45 minutes until the casserole is set. Remove it from the oven and allow it to stand at room temperature for a few minutes before serving. It is delicious served with fruit and juice or coffee.

Here’s my Southern Breakfast Casserole recipe. I think you’ll love it as much as we do!

Southern Breakfast Casserole Recipe

5 from 4 votes
Southern Breakfast Casserole Recipe – Filled with eggs, sausage, cheese, and tender buttermilk biscuits, this makes the perfect breakfast! Made even easier as a make ahead breakfast casserole, it will quickly become a family favorite!
Prep Time: 15 minutes
Cook Time: 40 minutes
Total Time: 55 minutes
Servings: 10


  • 1 pound breakfast sausage
  • 1/2 medium onion, diced
  • 1 clove garlic, diced
  • 4-6 buttermilk biscuits, cubed
  • 2 cups whole milk or half and half
  • 8 large eggs, beaten
  • 1 cup grated Cheddar cheese
  • 1/2 teaspoon kosher salt
  • 1/2 teaspoon ground black pepper
  • 1/2 teaspoon dry mustard


  • Spray 9×13 casserole dish with nonstick cooking spray and set aside.
  • Crumble sausage in a medium skillet with onion and garlic. Cook over medium heat until the sausage is browned and cooked through and the onion is tender. Drain and set aside.
  • Arrange bread cubes in bottom of prepared casserole dish.
  • Stir together sausage mixture, milk, eggs, cheese, salt, pepper, and dry mustard and pour over cubed biscuits. Cover tightly and refrigerate overnight up to two days.
  • Preheat oven to 350º F and bake for 40-45 minutes, until center of casserole is just set. Allow to stand for about 10 minutes before serving.


Calories: 313kcal | Carbohydrates: 8g | Protein: 17g | Fat: 22g | Saturated Fat: 8g | Cholesterol: 198mg | Sodium: 654mg | Potassium: 275mg | Sugar: 3g | Vitamin A: 440IU | Vitamin C: 0.8mg | Calcium: 170mg | Iron: 1.6mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Robyn xo

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About Robyn

Robyn Stone is a wife, mom, blogger, recipe developer, and cookbook author. Welcome to Add a Pinch where I share thousands of delicious, tested and perfected easy recipes that the whole family will love.

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Recipe Review


    1. Aww, thank you so much DiAnn! I’m so happy to have you here and appreciate your kind comment! I hope you continue to enjoy all the recipes! xo

  1. 5 stars
    I made this and it is so good. I used Pillsbury Grands biscuits which is a roll of 8. I used 5 of the biscuits which I tore into pieces. I added a few fresh mushrooms into the frying pan with the sausage. My family enjoyed it, thanks for the recipe Robin.