Biscuit Breakfast Casserole – The Best One-Pan Comfort Food

There’s nothing better than waking up to a warm, hearty breakfast that’s both easy to make and packed with flavor. This Biscuit Breakfast Casserole is the ultimate one-pan comfort food, combining fluffy buttermilk biscuits, savory sausage, creamy eggs, and gooey melted cheese into a dish the whole family will love.

Whether you’re meal prepping for a busy week, hosting a cozy brunch, or just craving a Southern-style breakfast, this recipe is a guaranteed crowd-pleaser. It’s quick to assemble, bakes to golden perfection, and can be easily customized with your favorite ingredients. Plus, with minimal prep and cleanup, you get all the deliciousness of a homemade breakfast without the hassle!

Ready to make the best biscuit breakfast casserole? Let’s get started!

Why You’ll Love This Biscuit Breakfast Casserole

This Biscuit Breakfast Casserole isn’t just another morning meal—it’s a warm, satisfying, and effortless dish that brings comfort to your breakfast table. Whether you’re cooking for a busy weekday morning, a family gathering, or a holiday brunch, this recipe checks all the right boxes. Here’s why you’ll love it:

1. Easy One-Pan Recipe

If you love quick and hassle-free cooking, this recipe is for you! Everything comes together in a single baking dish, so there’s minimal prep, no complicated steps, and fewer dishes to clean up. Just layer the ingredients, pop it in the oven, and let it bake to golden perfection!

2. Perfect for Brunch or Meal Prep

Hosting a brunch? This casserole is a crowd-pleaser that requires little effort but delivers big flavor. You can even prepare it the night before, store it in the fridge, and bake it fresh in the morning. It’s also great for meal prep—make a batch, store portions in the fridge, and reheat them for a quick and satisfying breakfast all week long.

3. Loaded with Flavor

This dish is a savory breakfast lover’s dream! The flaky buttermilk biscuits soak up all the rich flavors from the eggs, cheese, and sausage, creating the perfect blend of textures. The melty cheddar cheese adds creaminess, while the seasoned sausage brings a hearty, comforting taste. You can also customize it with different ingredients, like bell peppers, onions, or even a touch of hot sauce for an extra kick!

4. Family-Friendly & Customizable

Picky eaters? No problem! This casserole is kid-approved, and you can easily customize it to fit your family’s preferences. Swap out the sausage for turkey or chicken, add in some veggies for extra nutrition, or use your favorite cheese for a different twist. It’s a versatile dish that everyone can enjoy!

Ingredients You’ll Need

This Biscuit Breakfast Casserole is made with simple, everyday ingredients, yet it delivers a rich, comforting flavor that feels like a special treat. Below, we’ll break down the essential components and some optional add-ins to help you customize your casserole to perfection.

1. Main Ingredients

These are the core ingredients that give the casserole its classic taste and texture:

• Buttermilk Biscuits – The base of the casserole! Store-bought refrigerated biscuits work great for convenience, but you can also use homemade biscuits for an extra touch of flavor. They bake up fluffy, golden, and slightly crispy on top, soaking up all the delicious egg and cheese mixture.
• Eggs – The binding ingredient that gives the casserole its rich, creamy texture. Eggs help hold everything together while adding a protein boost to keep you full longer.
• Breakfast Sausage – A key ingredient for that savory, meaty goodness. You can use pork sausage, turkey sausage, or even plant-based sausage for a vegetarian version. Brown the sausage before adding it to the casserole for the best flavor.
• Cheddar Cheese – What’s breakfast without a little cheese? Cheddar adds a sharp, creamy flavor that pairs beautifully with the biscuits and eggs. Feel free to mix in mozzarella, Monterey Jack, or pepper jack cheese for extra cheesiness!
• Milk – Helps create a smooth and fluffy egg mixture that coats the biscuits perfectly. Whole milk is best for a rich texture, but you can use 2% milk or a dairy-free alternative like almond or oat milk.
• Salt & Pepper – Simple but essential! A little seasoning enhances all the flavors and ties everything together.

2. Optional Add-Ins for Extra Flavor

Want to customize your casserole? Here are some optional ingredients that can add extra texture and flavor:

• Bell Peppers & Onions – Add a pop of color and a slight sweetness. Dice them finely and sauté them before adding to the casserole for a softer texture.
• Spinach or Kale – For a nutritional boost, toss in a handful of chopped greens. They wilt beautifully into the casserole as it bakes.
• Mushrooms – If you love earthy, umami flavors, sliced mushrooms are a great addition. Sauté them first to remove excess moisture.
• Crumbled Bacon – If you want to switch things up, crumbled turkey or beef bacon can add a crispy, smoky twist.
• Jalapeños or Hot Sauce – Love a spicy kick? Freshly diced jalapeños or a splash of your favorite hot sauce can elevate the dish with some heat!

3. Best Toppings & Garnishes

Once your Biscuit Breakfast Casserole is out of the oven, you can take it to the next level with these delicious finishing touches:

• Fresh Herbs – Chopped parsley, cilantro, or chives add a fresh contrast to the rich flavors.
• Avocado Slices – For a creamy, healthy topping that complements the savory ingredients.
• Maple Syrup or Honey – A drizzle over the top balances the salty, cheesy flavors with a touch of sweetness.
• Sour Cream or Greek Yogurt – Adds a cool, tangy contrast to the warm, cheesy casserole.

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With these essential ingredients and flavorful add-ins, you can create a customized, satisfying breakfast that’s perfect for any occasion. Now, let’s move on to the step-by-step instructions to bring this dish to life!

Step-by-Step Instructions to Make It

Making this Biscuit Breakfast Casserole is simple. Just prep the ingredients, layer them in a baking dish, and let the oven do the work. Follow these steps to create a warm, cheesy, and satisfying breakfast that’s perfect for any occasion.

Prepare the Ingredients

• Prepare the ingredients
  • 1 lb (450g) breakfast sausage – This can be your choice of pork, turkey, or even a vegetarian option. For a leaner alternative, consider using turkey sausage, which is just as flavorful but lower in fat. You can try this Turkey Breakfast Sausage Recipe for a homemade option.
  • 1 can of refrigerated biscuits (or homemade biscuits, broken into bite-sized pieces)
  • 1 onion (optional, diced)
  • 1 bell pepper (optional, diced)
  • 1 cup spinach (optional, chopped)
  • 1 cup mushrooms (optional, sliced)
  • Butter or non-stick spray (for greasing the baking dish)
• Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish with butter or non-stick spray.
• Cook the breakfast sausage in a skillet over medium heat until browned and fully cooked, breaking it up with a spatula. Drain excess grease and set aside.
• Cut refrigerated biscuits into quarters or break homemade biscuits into bite-sized pieces.
• If adding onions, bell peppers, spinach, or mushrooms, sauté them in the same skillet for a few minutes to soften them and enhance their flavor.

Assemble the Casserole

• Spread the biscuit pieces evenly across the bottom of the greased baking dish.
• Sprinkle the cooked sausage over the biscuits, distributing it evenly.
• If using sautéed vegetables, crumbled bacon, or mushrooms, layer them on top of the sausage.
• Evenly sprinkle shredded cheddar cheese over the sausage and biscuit mixture. For extra cheesiness, mix in Monterey Jack or mozzarella.

Mix and Pour the Egg Mixture

• In a medium bowl, whisk together 6-8 large eggs, ½ cup of milk, salt, and pepper until well combined. The milk helps keep the casserole light and moist.
• Slowly pour the egg mixture over the biscuit, sausage, and cheese layers, ensuring it is evenly distributed so the biscuits soak up the eggs and bake evenly.

Bake the Casserole

• Bake at 350°F (175°C) for 30-35 minutes or until the eggs are fully set and the biscuits are golden brown on top.
• Check for doneness by inserting a knife or toothpick in the center—if it comes out clean, the casserole is ready.
• If extra cheesiness is desired, sprinkle additional cheese on top during the last 5 minutes of baking and let it melt.
• Let the casserole rest for 5 minutes before slicing and serving. This helps it set and makes serving easier.

Serve and Enjoy

• Serve warm, cut into squares, and enjoy as is or with toppings like fresh herbs, avocado slices, or a dollop of sour cream.
• For a sweet-savory contrast, drizzle with maple syrup.
• Pair with fresh fruit, hash browns, or a simple side salad for a complete meal.

This step-by-step guide ensures a foolproof, delicious breakfast casserole that’s cheesy, hearty, and perfect for any gathering or meal prep.

Tips for the Best Biscuit Breakfast Casserole

A great biscuit breakfast casserole is more than just combining ingredients—it’s about achieving the perfect balance of flavors, textures, and consistency. Here are some expert tips to ensure your casserole turns out fluffy, cheesy, and delicious every time.

1. Use High-Quality Ingredients

The quality of your ingredients plays a major role in the final dish.

• Biscuits: Use buttermilk biscuits for the best texture and flavor. If using canned biscuits, opt for flaky varieties for a lighter, airy bite.
• Sausage: Choose a well-seasoned breakfast sausage, or use a spicy sausage if you prefer a bit of heat. Turkey sausage can be a leaner option.
• Cheese: Always go for freshly shredded cheese instead of pre-packaged shredded cheese, which contains anti-caking agents that can affect melting.

2. Prevent a Soggy Casserole

No one wants a casserole that’s too wet or undercooked in the center.

• Cut the biscuits into small, even pieces so they absorb the egg mixture properly without becoming overly dense.
• Use the right egg-to-milk ratio to ensure a light and fluffy texture. Too much liquid can make the casserole mushy. A good rule of thumb is ½ cup of milk for every 6-8 eggs.
• Drain excess grease from the sausage before layering it in the dish. This prevents the casserole from becoming too oily.

3. Get the Perfect Texture and Flavor

• Layer evenly so that every bite has a good mix of biscuits, sausage, cheese, and eggs. Avoid piling ingredients in one section.
• Season well by adding a pinch of garlic powder, onion powder, or smoked paprika to the egg mixture for extra depth of flavor.
• Bake uncovered so the top gets golden brown and slightly crispy while the inside stays soft and fluffy.

4. Make It Ahead for Convenience

This casserole is perfect for meal prep or holiday breakfasts.

• Assemble the night before: Cover the dish tightly and refrigerate overnight. In the morning, let it sit at room temperature for 15-20 minutes before baking.
• Freeze leftovers: Cut the fully baked casserole into portions, wrap them individually, and freeze for up to 3 months. Reheat in the oven or microwave when needed.

5. Customize It to Your Taste

This casserole is versatile and can be adapted to different preferences.

• Add vegetables like bell peppers, spinach, mushrooms, or onions for extra flavor and nutrients.
• Swap the protein by using diced ham, cooked bacon, or even a vegetarian sausage alternative.
• Try different cheeses such as pepper jack for spice, Swiss for a nutty flavor, or gouda for a creamy, smoky taste.

By following these tips, you’ll ensure that your biscuit breakfast casserole is flavorful, satisfying, and perfectly baked every time.

Serving and Storing Your Casserole

Once your biscuit breakfast casserole is golden brown, fluffy, and packed with flavor, it’s time to serve and enjoy it. Whether you’re making it for a family breakfast, a brunch gathering, or meal prep, here’s how to serve it for the best experience and how to store leftovers properly to keep them fresh.

1. The Best Way to Serve Your Biscuit Breakfast Casserole

This casserole is incredibly versatile and pairs well with a variety of side dishes and toppings. Here’s how to serve it:

• Let it rest before slicing – Allow the casserole to sit for 5-10 minutes after baking. This helps it set and makes slicing easier without falling apart.
• Cut into squares – Use a sharp knife or a spatula to divide it into evenly sized portions for easy serving.
• Pair with complementary sides – Serve with fresh fruit, hash browns, roasted potatoes, or a simple side salad for a well-rounded meal.
• Add toppings for extra flavor – A drizzle of hot sauce, salsa, avocado slices, sour cream, or fresh herbs can elevate the flavors and add a fresh touch.

This casserole is also great for serving a crowd, making it ideal for brunch gatherings, potlucks, or holiday mornings.

2. How to Store Leftovers

If you have leftovers, they store well and can be enjoyed later without losing flavor or texture. Follow these simple storage steps:

• Refrigerate: Let the casserole cool completely, then cover the baking dish with plastic wrap or transfer portions to an airtight container. Store in the refrigerator for up to 4 days.
• Freeze for later: Wrap individual slices in plastic wrap and place them in a freezer-safe bag or container. Freeze for up to 3 months.

3. Reheating Instructions

Reheating your casserole properly ensures it stays moist and delicious:

• Oven: Preheat to 350°F (175°C) and bake leftover slices for 15-20 minutes until heated through. This keeps the texture closest to freshly baked.
• Microwave: Heat individual portions on a microwave-safe plate for 1-2 minutes, covering with a damp paper towel to prevent drying out.
• Air Fryer: For a slightly crispier reheated casserole, place slices in an air fryer at 350°F (175°C) for 5-7 minutes.

With these storage and reheating tips, you can enjoy this delicious biscuit breakfast casserole even on busy mornings, making it a great meal prep option for the week.

4. Breakfast Health Benefits

Not only is this casserole tasty and convenient, but it’s also part of a healthy breakfast routine. According to Better Health, having a balanced breakfast can improve energy levels, concentration, and overall well-being throughout the day. So, whether you enjoy this casserole as a hearty morning meal or incorporate it into your weekend brunch, you’re fueling your body with the nutrients needed to kickstart your day.