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Breakfast Sausage Casserole

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Make this breakfast sausage casserole ahead of time so you can have a hearty and tasty breakfast that can heat and go. This flavor packed just takes about an hour to prep, bake, and freeze in individual servings so you can have breakfasts, quick lunches, or dinners for a couple weeks.

breakfast sausage casserole on plate with fried potatoes next to casserole in glass dish

[This recipe was originally posted in March 2018. It has been updated with new cooking instructions, expert tips, FAQ, related recipes, and ways to repurpose/use up ingredients]

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How will this breakfast sausage casserole make your life easier?

Would you rather sleep in a bit longer or actually do your hair in the morning? Ya me too. This breakfast casserole is the perfect way to eat a delicious breakfast without spending much time in the morning.

Take an hour to whip this casserole up, and then freeze in individual portions so you can grab and microwave it at home or at the office for a quick and nourishing breakfast. These freezer breakfast tacos, simple berry overnight oats, & peanut butter and banana overnight oats, and easy yogurt bowl are a couple of my other fave quick breakfast ideas.

What makes this breakfast casserole so good?

  • Breakfast sausage
  • Eggs
  • Milk
  • Kale
  • Shallot
  • Green bell pepper
  • Cheddar cheese 

How do I make this breakfast sausage casserole?

Heat cast iron skillet or medium sized sautee pan over medium heat. Spray with cooking spray, add 2 lbs breakfast sausage to hot skillet. Separate meat to crumble and cook until done. About 10 minutes.

Expert Tip: Use your favorite sweet breakfast sausage.

cooked breakfast sausage in a cast iron skillet next to bowls of vegetables and cracked eggs with milk

While sausage is cooking, heat oven to 350 degrees, and mix together 12 eggs and 2 cups milk in a large mixing bowl. Add salt and pepper. Whisk until well combined.

eggs, vegetables, and sausage in a white mixing bowl on top of a white and blue striped towel next to a cast iron skillet

Mince one shallot, dice a green pepper, and remove leaves then chop up a bunch of kale (about 2-3 cups, chopped). Mix vegetables and 1 c shredded cheddar cheese into egg mixture. 

Expert Tip: Use leftover vegetables in your fridge/kitchen, or buy pre-chopped vegetables for convenience.

egg casserole ingredients in glass baking pan next to an empty cast iron skillet

When sausage is done cooking, add to egg mixture and stir together. Spray a 9×13 inch glass baking dish with cooking spray. Pour egg mixture into pan.

egg casserole and potatoes in tupperware next to full casserole in dish

Top with more shredded cheese if desired. Cook for 30 minutes, or until eggs are cooked all the way through. Serve, refrigerate, or freeze for breakfast for the week.

Expert Tip: Slice into 8-12 pieces and freeze individual portions for quick breakfasts and lunches

Expert tips

  • Use your favorite sweet breakfast sausage.
  • Use leftover vegetables in your fridge/kitchen, or buy pre-chopped vegetables for convenience.
  • Slice into 8-12 pieces and freeze individual portions for quick breakfasts and lunches

FAQ

Can you freeze a breakfast casserole?

Yes, it’s a great way to a quick meal. Slice it up into individual servings, and then freeze on a baking sheet until frozen and place in a large freezer bag OR freeze in individual servings.

How do you reheat a breakfast casserole?

Place a serving of the casserole on a microwave safe plate and microwave for up to 60 seconds, or until warm. (Microwaving times may vary depending on individual microwave capabilities). Eat immediately.

breakfast sausage casserole in glass baking dish on a blue and white striped towel

How can I repurpose this casserole?

  • Stuff it into a baguette or between a couple slices of bread for a quick lunch or dinner.
  • Heat up a tortilla and wrap a slice of this casserole in it. Top with salsa if you’d like.

What can I make with leftover ingredients?

Since this recipe makes lots of servings, there may not be many leftovers, but if there are you can make-

Did you make this sausage breakfast casserole? Leave me a comment & rating to share how it turned out!

egg casserole in glass baking dish
Print Pin
5 from 7 votes

Sausage and Egg Breakfast Casserole

Combine some hearty vegetables, eggs, cheese and your favorite sausage to make this sausage and egg casserole that’s an easy and super delicious breakfast that will make you look forward to waking up.
Course Breakfast
Cuisine American
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 12 portions
Author Rebecca

Equipment

  • Glass Casserole Pan
  • Large Fry Pan
  • knife
  • cutting board
  • Large mixing bowl
  • spatula

Ingredients

  • 2 pounds breakfast sausage
  • 12 eggs
  • 2 cups milk
  • 3 cups kale washed and chopped
  • 1 medium shallot, diced OR 1/2 onion, and 2 cloves of garlic
  • 1 medium green bell pepper diced
  • 1 cup shredded cheddar cheese + more to cover top if desired
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper

Instructions

  • Heat cast iron skillet or medium sized sautee pan over medium heat. Spray with cooking spray, add 2 lbs breakfast sausage to hot skillet. Separate meat to crumble and cook until done. About 10 minutes.
  • While sausage is cooking, heat oven to 350 degrees, and mix together 12 eggs and 2 cups milk in a large mixing bowl. Add salt and pepper. Whisk until well combined.
  • Mince one shallot, dice a green pepper, and remove leaves then chop up a bunch of kale (about 2-3 cups, chopped). Mix vegetables and 1 c shredded cheddar cheese into egg mixture.
  • When sausage is done cooking, add to egg mixture and stir together. Spray a 9×13 inch glass baking dish with cooking spray. Pour egg mixture into pan.
  • Top with more shredded cheese if desired. Cook for 30 minutes, or until eggs are cooked all the way through. Serve, refrigerate, or freeze for breakfast for the week.

Notes

  • Use your favorite sweet breakfast sausage.
  • Use leftover vegetables in your fridge/kitchen, or buy pre-chopped vegetables for convenience.
  • Slice into 8-12 pieces and freeze individual portions for quick breakfasts and lunches

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About Rebecca

Welcome! I’m Rebecca, a food loving dietitian. On Nourish Nutrition, you’ll find real, quick, and nourishing recipes for one that'll get you to want to cook for yourself, because you deserve it.

Reader Interactions

Comments

  2. Danielle says

    5 stars
    Great recipe! I also eat breakfast every day, usually about 1-2 hours after i get up. It’s a must to get me energized (I mean, besides coffee). I’m not a fan of breakfast sausage, but feel like this would be great with some chicken sausage.

    Reply

  7. Claire | Sprinkles and Sprouts says

    5 stars
    I admit to not being a breakfast eater. I am a late riser!
    I get up at 7 and have the kids out of the door for school before 8.
    I spend 30 minutes cleaning the house, then I sit down to breakfast and a cup of coffee. Usually catching up on emails.

    But this casserole, it sounds delicious and I can see myself having it in the fridge to pick at, after a big brunch party!

    Reply

  15. Melanie Starita says

    5 stars
    I just made this and loved it! A great protein-filled meal that’s packed with veggies. I feel full and happy but not weighed down like I do after eating some other types of breakfast foods. I’m excited to add this to my list of favorite meals! 🙂

    Reply

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