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Home » Recipes » Pork, Sausage, Other Meats

Leftover Pizza Breakfast Casserole

Updated: Feb 29, 2024 by Marye

Leftover pizza breakfast casserole is the best way ever to use up the leftovers from Friday night pizza night!
Total time for the recipe to be finished.Total Time 1 hour hour 10 minutes minutes
Jump to Recipe Pin Recipe
Side view of a serving of casserole on a fork with gooey cheese.
A bite of pizza casserole on a fork with text overlay for Pinterest.

Friday night movie night is even better when followed by Saturday morning brunch! Especially when you can use up that leftover pizza.

Don't want to scroll through the page to get to the recipe? Use the table of contents to click on the section you want to go to.

A serving of casserole on a plate.
Table of Contents
  • ❤️ Why you'll love it
  • 🧾 Ingredients
  • 🔪 Instructions
  • 🥫 Storage
  • 📖 Variations
  • 💭 Things to know
  • 👩‍🍳 FAQs
  • 📚 Related recipes
  • 🍽️ Serve with...
  • 🥄 Restless Chipotle recommends
  • 📞 The last word
  • 📖 Recipe
  • 💬 Comments

❤️ Why you'll love it

  • The most fun, delicious way to use up a few leftover pizza slices
  • Easily and quickly feeds the whole family and overnight guests
  • Simple recipe works well with your favorite pizza toppings and breakfast meats

Leftover pizza breakfast casserole combines actual pizza pieces with tender sausage, fluffy eggs, and fragrant Italian spices.

Breakfast for dinner is already a family favorite, so now it's time to try dinner for breakfast—the perfect way to get everyone up and out of bed in the morning!

🧾 Ingredients

This is an overview of the ingredients. You'll find the full measurements and instructions in the green recipe card (printable) at the bottom of the page.

Labeled ingredients for this recipe.

🔪 Instructions

This is an overview of the instructions. Full instructions are in the green recipe card at the bottom of the page.

Step by step images showing how to make this casserole.
  1. Whisk all ingredients except parmesan and pizza in a mixing bowl.
  2. Cut pizza and add into dish.
  3. Pour the egg mixture over the pizza. Top with Parmesan.
  4. Bake and garnish as desired before serving.

🥫 Storage

This breakfast pizza recipe is best consumed hot out of the oven. However, you can store the leftovers—if you have any leftovers, that is!

Cover the dish with aluminum foil or plastic wrap, or transfer the casserole to an airtight container. Refrigerate for up to three days.

Microwave individual portions in short increments of time, checking often until it's warmed up. Eggs can get tough if they're overcooked, so reheat carefully!

Overhead view of the finished casserole in a glass dish.

📖 Variations

  • This recipe works just fine with grocery store or take-out pizza. It's also great with make-your-own pizza or pre-made pizza crusts!
  • Instead of breakfast sausage, use Italian sausage for more kick.
  • Cut up some crispy bacon or deli ham and use that in place of sausage, if you prefer.
  • Replace the ground sausage with ground beef, chicken, or turkey if you have some to use up.
  • Or, leave out the meat altogether for a vegetarian pizza breakfast bake.
  • If you don't have a ton of leftover pizza, you can use frozen hash browns at the bottom of the prepared baking dish, too. (This is also a great way to make the breakfast stretch for big families!)
  • There are tons of different ingredients you can add—that's the best part about pizza in general! Stir in your favorite pizza toppings, like red or green pepper, mushrooms, or pepperoni!
  • The parmesan cheese adds great flavor, but you can omit it if you want.
  • Feel free to use the red pepper flakes as garnish when serving if you're in mixed company (spicy and mild fans) or if you're cooking for kids.

💭 Things to know

Expert Tip: Pop the mozzarella cheese in the freezer for a bit to make it easier to shred!

  • Don't use preshredded cheese! It has a coating on it that keeps it from melting right. Take an extra 2 minutes and shred it yourself.
  • Quickly cut the leftover pizza into bite-sized pizza squares with a large, heavy chef's knife. You can also use a pizza cutter if you have one!
  • The casserole is finished when the egg mixture is set, meaning it no longer jiggles in the center. Give the casserole dish a gentle nudge to check, first. It will read 160F on an instant-read thermometer when you stick it in the middle. Or, stick a toothpick in the center and look for raw egg.
  • You can prep this easy pizza breakfast casserole ahead of time. Simply assemble the layers and cover the casserole dish with foil. Refrigerate until you want to bake.
  • If you use a 9"x13" casserole dish, the mixture will be thinner and require less cook time. Watch it closely to avoid overcooking. I do recommend a square, 9"x9" pan for best results.

👩‍🍳 FAQs

Can I use cheddar cheese instead of Mozzarella?

Though I usually say that "chedda is betta," that's not so much the case in this recipe. You can still use it if it's all you have, but pizza already has Mozzarella on it, so it's best to stick with that.

Is it okay to assemble this on Christmas Eve and bake it the next morning?

Sure thing! Just be sure to cover the casserole tightly, and pull it out of the fridge to warm up while your oven is preheating. Leftover pizza casserole is a fabulous Christmas morning treat!

Does this recipe work with Supreme pizza?

Pizza is pizza! Go ahead and use what you've got. Any slice of pizza will work no matter the flavor or style of crust.

A serving of casserole on a spatula.

📚 Related recipes

  • With eggs, sausage, peppers, and lots of cheese, Crockpot Christmas Breakfast Casserole has everyone's fave foods in one super easy dish.
  • Have some leftover garlic bread, too? Use it instead of the baguettes in this easy and delicious Garlic Bread Casserole.
  • This Cheese and Sausage Quiche has so much flavor from the cheese, cilantro, and chiles, it makes brunch feel like a fiesta!
  • For more awesome holiday breakfast ideas, check out this collection of recipes. They're great for the 4th of July, Memorial Day, Labor Day, and more.
  • Overhead view of a cherry kolache on a red and white plate.
    Homemade Kolache Recipe
  • Closeup of ham and cheese breakfast bake being served from a white casserole dish.
    Ham and Cheese Grits Casserole
  • Closeup of the slices of peach bread.
    Southern Peach Bread
  • A stack of pancakes with blueberries on top.
    40 4th of July Breakfast Ideas

🍽️ Serve with...

  • If you love a little savory and sweet action for your breakfast, try these Overnight Pecan Cinnamon Rolls. They're not too fussy—and SO good.
  • This Patriotic Fruit Salad is awesome for summer celebrations, cook-outs, and pool parties, but it's just as fun as a simple breakfast!
  • For a really special morning, try Bailey's Irish Temper Cocktails. They're made with Irish cream and rum to give your morning coffee a boost!

🥄 Restless Chipotle recommends

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You'll need the following items to make this recipe successfully.

  • whisk
  • 9x9-inch pan

📞 The last word

I'll admit we love leftover pizza for breakfast around here - always have. BUT, while grabbing a slice is quick and easy, making a casserole with the leftovers is OVER the top!

If you click on the number of servings in the recipe card you can adjust the measurements up or down for the exact number of servings you need. Don't forget that you can click on "add to collection" to save it to your own, private recipe box!

If you love this recipe please give it 5 stars! ⭐️⭐️⭐️⭐️⭐️

📖 Recipe

Side view of a serving of casserole on a fork with gooey cheese.

Leftover Pizza Breakfast Casserole

4.75 from 4 votes
Print Pin Recipe Rate Recipe
Leftover pizza breakfast casserole is the best way ever to use up the leftovers from Friday night pizza night!
Course Breakfast
Cuisine American
Prep Time: 5 minutes minutes
Cook Time: 1 hour hour 5 minutes minutes
Total Time: 1 hour hour 10 minutes minutes
Servings:6
Calories:402
Author:Marye Audet-White

Ingredients

  • 3 slices leftover pizza, Use up to 4 pieces, cut into ¾-inch squares
  • ½ pound bulk breakfast sausage, cooked
  • 4 eggs, beaten
  • 1 cup evaporated milk
  • 8 ounces mozzarella cheese, shredded
  • ⅓ cup onion, chopped
  • 3 tablespoons butter, melted
  • 1 teaspoon dried Italian seasoning
  • ½ teaspoon salt
  • ¼ cup Parmesan cheese, grated - optional
  • ¼ teaspoon red pepper flakes, or to taste

Instructions

  • Preheat oven to 350 degrees F.
  • Spray a 9x9-inch baking dish with cooking spray.
  • Cut left over pizza into bite sized squares and arrange in the baking dish.
  • Mix eggs, cooked sausage, milk, mozzarella cheese, onion, butter, garlic, oregano, and salt together in a large bowl.
  • Pour over pizza pieces.
  • Top with Parmesan cheese and red pepper flakes.
  • Cover dish with aluminum foil.
  • Bake for 45 minutes.
  • Remove foil and continue baking until eggs are set and Parmesan cheese is melted, about 20 more minutes.
  • Serve hot.

Notes

Storage
This breakfast pizza recipe is best consumed hot out of the oven. However, you can store the leftovers—if you have any leftovers, that is!
Cover the dish with aluminum foil or plastic wrap, or transfer the casserole to an airtight container. Refrigerate for up to three days.
This casserole also freezes well for up to 3 months.
To reheat:
Microwave individual portions in short increments of time, checking often until it's warmed up. Eggs can get tough if they're overcooked, so reheat carefully!
Tips
  • Freeze the Mozzarella before shredding.
  • Don't use pre-shredded cheese! It has a coating on it that keeps it from melting right. Take an extra 2 minutes and shred it yourself.
  • Quickly cut the leftover pizza into bite-sized pizza squares with a large, heavy chef's knife. You can also use a pizza cutter if you have one!
  • The casserole is finished when the egg mixture is set, meaning it no longer jiggles in the center. Give the casserole dish a gentle nudge to check, first. It will read 160F on an instant-read thermometer when you stick it in the middle. Or, stick a toothpick in the center and look for raw egg.
  • You can prep this easy pizza breakfast casserole ahead of time. Simply assemble the layers and cover the casserole dish with foil. Refrigerate until you want to bake.
  • If you use a 9"x13" casserole dish, the mixture will be thinner and require less cook time. Watch it closely to avoid overcooking. I do recommend a square, 9"x9" pan for best results.

Nutrition Facts

Calories: 402kcal | Carbohydrates: 7g | Protein: 22g | Fat: 31g | Saturated Fat: 15g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 11g | Trans Fat: 0.3g | Cholesterol: 197mg | Sodium: 880mg | Potassium: 321mg | Fiber: 0.3g | Sugar: 5g | Vitamin A: 787IU | Vitamin C: 2mg | Calcium: 369mg | Iron: 1mg

Nutrition information is estimated as a courtesy. If using for medical purposes, please verify information using your own nutritional calculator. Percent Daily Values are based on a 2000 calorie diet.

This recipe has been tested several times. If you choose to use other ingredients, or change the technique in some way, the results may not be the same.

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About Marye

Meet Marye Audet, a wizard in the kitchen and a storyteller at heart. Marye is like your eccentric but fun aunt who knows all the secret recipes and isn't afraid to spill them.

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Marye Audet-White, founder of Restless Chipotle Media

Hey Y'all, I'm Marye

Welcome to my kitchen! ☕

NY Times bestselling author. 10 cookbooks. Mom of 8 kids. Homeschooling mom for 22 years. Addicted to Hallmark Christmas Movies. Collector of old cookbooks.

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