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This protein-packed savory English Muffin Breakfast Casserole is like eating your favorite breakfast sandwich in casserole form – quick, easy, and SUPER yummy! Perfect make-ahead dish for Christmas breakfast! 

breakfast casserole with vital proteinsthis post is sponsored by vital proteins. all opinions are my own

English Muffin Breakfast Casserole

Maybe it’s an effect of the colder weather, but I find myself craving tasty comfort foods around the holiday time, and this English muffin breakfast casserole always hits the spot! It’s perfect for Christmas breakfast because you can make it the night before and pop it in the oven on Christmas morning for a quick and easy morning meal. This yummy casserole tastes just like your favorite breakfast sandwich, but it has a special ingredient that helps your body feel better, look better, and get the most from every day!

breakfast casserole ingredients laid out

For my English muffin breakfast casserole, I used a few basic breakfast sandwich ingredients that my family loves to eat, but you can feel free to mix things up to suit your own taste preferences. I included bacon, sausage, cheddar cheese, and kale in our sandwiches, but spinach, mushrooms, and bell peppers would also be tasty additions.

vital proteins collagen peptides jar

This little blue canister here is my secret ingredient for making this yummy breakfast casserole even better (and better-for-you!)!

vital proteins and breakfast items

I’ve been using Vital Proteins Collagen Peptides for a couple of years, and it’s one of my favorite ways to add an extra boost of nutrition to dishes that I’m cooking. Collagen is the building block of our body’s skin, hair, nails, bones, and joints, and our modern diets only contain minimal amounts of collagen. Adding collagen to your dishes helps aid your body with health, fitness, beauty, and overall vitality, and we all want that! Vital Proteins Collagen Peptides are totally tasteless and odorless, so you can add them to virtually anything – hot or cold beverages, smoothies, sauces, soups, baked goods, and more! It truly is 100% tasteless, and I promise that you would never ever know that there was added collagen in here unless I told you!

If you’re interested, you can read more about the benefits of collagen here.

cut english muffins for breakfast casserole

To make my English muffin breakfast casserole, I started with a lightly greased 1.5-quart baking dish and five English muffins that were cut into eighths.

layered breakfast sandwich casserole topped with cheese

The English muffin pieces were layered with sausage, bacon, cheese, and kale until the entire dish was full.

eggs and ingredients in mixing bowl

I added salt, pepper, milk, and Vital Proteins Collagen Peptides to my eggs, and I whisked everything together with an electric whisk until it was light and frothy.

ingredients combined for breakfast casserole

ingredients poured over breakfast casserole

I poured the egg mixture over everything, covered it with foil, and let it sit for 20 minutes before baking. You could also refrigerate the dish overnight at this point, and it will be ready to be baked in the morning – perfect for Christmas breakfast!

breakfast sausage casserole and vital proteins

This delicious savory breakfast dish is totally perfect for holiday brunches, potlucks, or ANY time!

Bacon and sausage breakfast casserole

This English muffin breakfast casserole is just like eating your favorite breakfast sandwich ingredients in casserole form – it is SOOOOO good, and it’s sure to be a huge hit with your family and friends!

Bacon and sausage breakfast casserole in dish

fork picking up bacon and sausage breakfast casserole

Bacon and sausage breakfast casserole in dish

English Muffin Breakfast Casserole

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What You’ll Need:

  • 5 English Muffins, cut into 1/8ths
  • 8 strips Pre-Cooked Bacon, chopped
  • 8 Pre-Cooked Sausage Links, chopped
  • 1 cup Cheddar Cheese, shredded
  • 1 cup Kale, chopped
  • 8 Eggs
  • 1/3 cup Milk
  • 2 scoops Vital Proteins Collagen Peptides
  • Salt and Pepper to taste


  • Preheat oven to 325. 
  • Lightly grease a 1.5-quart baking dish and layer the dish with English muffin pieces, bacon, sausage, cheese, and kale. 
  • In a medium-sized bowl, whisk together eggs, milk, Vital Proteins Collagen Peptides, salt, and pepper. 
  • Pour the egg mixture over the English muffin mix in the baking pan. Cover with foil and allow to sit for 20 minutes or refrigerate immediately for baking in the morning. 
  • Bake covered for 25 minutes. Uncover and bake for an additional 15-20 minutes until the eggs have firmly set and the top is very lightly golden. 
Did You Make This?Mention @HeidiKundin or tag #hihmakersclub on Instagram to show off your awesome work! ♥

protein packed breakfast casserole in dishThis protein-packed savory English muffin breakfast casserole is one of my favorite breakfast dishes, and I love that it’s full of healthy special ingredients that help me look good and feel good, too!

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English muffin breakfast casserole

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