When I first stumbled upon the Ultimate Breakfast Casserole, I immediately knew it was destined to become a weekend staple in my home. The comforting aroma of sausage sizzling away mingling with the anticipation of fluffy eggs and melted cheese creates a perfect morning scene. This casserole isn’t just a feast for the senses; it’s a delightful way to kickstart any day, be it a mundane Monday or a festive holiday brunch. With its hearty ingredients and simple preparation, this breakfast dish easily wins over family and friends alike—making it a true crowd-pleaser.
Why You’ll Love This Dish
There are countless reasons to add this casserole to your breakfast repertoire. First and foremost, it’s an effortless way to feed a group without the hassle of multiple pots and pans. It’s budget-friendly, making use of everyday ingredients that you probably already have on hand. Plus, it’s adaptable—perfectly accommodating picky eaters with your choice of veggies or cheese.
Picture this: a soft, cheesy casserole with just the right crunch on top, all baked to golden perfection. The best part? It’s perfect for meal prep! Make it ahead of time, store it in the fridge or freezer, and pop it into the oven for a quick heat-and-eat breakfast.
“I made this casserole for a brunch, and everyone went back for seconds! It’s so easy to make and tastes amazing.” – A happy home cook.
Step-by-Step Overview
Making the Ultimate Breakfast Casserole is a breeze! Start by browning the sausage to build that rich flavor base. As it cooks, whisk the eggs and milk, tossing in seasonings for a delightful kick. Once combined, mix in the rest of your delicious ingredients. Finally, pour it all into a greased baking dish and let the oven do its magic.
What You’ll Need
Here’s the complete list of ingredients to gather:
- 1 pound bulk sausage
- 6 large eggs
- 2 cups milk
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon garlic powder
- 8 slices of bread, cubed
- 2 cups shredded cheddar cheese
- 1 cup diced bell peppers
- 1 cup diced onions
You can easily swap the cheddar cheese for pepper jack for a spicy kick, or even use whole grain bread for a healthier twist!

Directions to Follow
- Preheat your oven to 350°F (175°C).
- In a large skillet over medium heat, cook the bulk sausage until browned. Then, drain any excess fat.
- In a big mixing bowl, whisk together the eggs, milk, salt, pepper, and garlic powder until well combined.
- Add the cooked sausage to the egg mixture, along with the cubed bread, shredded cheese, diced bell peppers, and diced onions. Mix gently to incorporate all the ingredients.
- Pour the mixture into a greased 9×13 inch baking dish.
- Bake in the preheated oven for 30 to 35 minutes, or until the casserole is set and the top is a beautiful golden brown.
- Allow it to cool for a few minutes before slicing and serving.
Best Ways to Enjoy It
This Ultimate Breakfast Casserole is delicious on its own but can be elevated with a few simple accompaniments. Consider serving it alongside fresh fruit for a splash of color and flavor. A dollop of sour cream or a drizzle of salsa can also add a burst of zest that pairs beautifully with the rich flavors of the casserole. For a complete breakfast experience, serve it with a hot cup of coffee or freshly squeezed orange juice.
Keeping Leftovers Fresh
To store leftovers, place them in an airtight container and refrigerate for up to 3–4 days. If you want to keep it for longer, you can freeze individual portions for up to three months. To reheat, simply thaw overnight in the refrigerator and warm it in the oven at 350°F (175°C) until heated through, about 20 minutes.
Helpful Cooking Tips
For an even creamier casserole, use half-and-half instead of milk. If you’re rushing in the morning, prep the egg mixture the night before and refrigerate it, so assembly is quick and easy in the morning. Consider letting it sit for a few minutes after baking; this helps the flavors meld and makes slicing easier.
Recipe Variations
Feeling adventurous? Try adding cooked spinach or sun-dried tomatoes for an Italian twist. You could also swap out the sausage for cooked bacon or chorizo. For a vegetarian option, just skip the meat and add more veggies like mushrooms or zucchini. The possibilities are endless!
Frequently Asked Questions
How long does it take to prepare?
Prep time is about 15 minutes, followed by a baking time of 30 to 35 minutes.
Can I use low-fat milk?
Yes, low-fat milk or even plant-based alternatives can work well without sacrificing taste.
How do I reheat leftovers?
Reheat individual portions in the microwave for 1–2 minutes or in the oven at 350°F (175°C) for about 20 minutes.


Ultimate Breakfast Casserole
A hearty and cheesy breakfast casserole perfect for feeding a group with minimal effort.
- Prep Time: 15
- Cook Time: 35
- Total Time: 50
- Yield: 8 servings 1x
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Omnivore
Ingredients
- 1 pound bulk sausage
- 6 large eggs
- 2 cups milk
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon garlic powder
- 8 slices of bread, cubed
- 2 cups shredded cheddar cheese
- 1 cup diced bell peppers
- 1 cup diced onions
Instructions
- Preheat your oven to 350°F (175°C).
- In a large skillet over medium heat, cook the bulk sausage until browned. Then, drain any excess fat.
- In a big mixing bowl, whisk together the eggs, milk, salt, pepper, and garlic powder until well combined.
- Add the cooked sausage to the egg mixture, along with the cubed bread, shredded cheese, diced bell peppers, and diced onions. Mix gently to incorporate all the ingredients.
- Pour the mixture into a greased 9×13 inch baking dish.
- Bake in the preheated oven for 30 to 35 minutes, or until the casserole is set and the top is a beautiful golden brown.
- Allow it to cool for a few minutes before slicing and serving.
Notes
For an even creamier casserole, consider using half-and-half instead of milk. Prep the egg mixture the night before for quick assembly in the morning.
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 5g
- Sodium: 800mg
- Fat: 20g
- Saturated Fat: 8g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 2g
- Protein: 18g
- Cholesterol: 220mg

