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This overnight breakfast casserole chock full of vegetables, sausage, chorizo and brioche is an incredible time saver and such a treat. Make it this holiday season!

This recipe is a great way to make a holiday brunch easy. We have other fantastic options here!

Top down of the overnight breakfast casserole with a spoon
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Breakfast is the most important meal of the day they say. I am not here to tell you whether it’s true or not. I am however, here to make it the most delicious meal of the day with my overnight breakfast casserole.

Whether you are a morning person or not, we can all agree, it brightens our a day quite a bit when we start with a tasty and nutritious breakfast.

But who wants to get straight into cooking first thing in the morning? Not this girl! It takes me a good half hour to wake up.

So the most reasonable solution is to get your breakfast ready the night before, which is especially handy when you cook for a crowd! Or when you want to make a special breakfast for a Christmas morning.

Close up of the breakfast casserole

Why you’ll love it

The base of the breakfast casserole recipe I am sharing today is egg and brioche loaf. Everything else is delicious, flavour-giving extra.

The variety of ingredients in this lend it a sumptuous range of flavours that all meld together into one incredible, savoury casserole. The subtle spice of chorizo and freshness of the vegetables gets baked into the creamy eggs and cheese.

Add a few more hits of flavour with ingredients like garlic, This is an affiliate link.Dijon mustard and lovely paprika and you have a stunning combination of tastes and textures. Absolutely perfect to wake up to!

Recipe ingredients

Here is a list of ingredients for a savoury, egg-based dish:

  • eggs
  • bread (I used brioche but other white breads will work equally well)
  • sautéed onions, red peppers and mushrooms with a touch of garlic
  • green onions and parsley
  • a mix of two cheeses (White Cheddar and Red Leicester for me) but you can use any cheese you love
  • This is an affiliate link.Worcestershire sauce, This is an affiliate link.Dijon mustard and a dash of This is an affiliate link.Spanish paprika to take flavours up a notch
  • milk
Four process shots showing the preparation of the ingredients

Recipe Tips and Notes

  • The ingredients I added to my breakfast dish are the ingredients my family loves but they could be easily swapped for your personal favourites.
  • The beauty of this breakfast casserole, apart from its delicious flavour, is the convenience. You can slice, sauté and assemble the casserole the night before, cover it and refrigerate overnight.
  • The casserole reheats beautifully either in the microwave or an oven if you end up with any leftovers.
Top down of the breakfast casserole

Overnight Breakfast Casserole with Sausage, Chorizo and Eggs

Prep: 20 minutes
Cook: 50 minutes
Total: 1 hour 10 minutes
Servings: 8 -10
This overnight breakfast casserole chock full of vegetables, sausage, chorizo and brioche is an incredible time saver and such a treat.
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Equipment

Ingredients 

  • 4 sausages, I used Cumberland sausages
  • 60g / 1/2 cup chorizo, diced
  • 1 onion, chopped
  • 1 red pepper, diced
  • 200g / 1½ cups mushrooms, sliced
  • 1 clove garlic
  • 1/4 tsp Spanish paprika
  • 8 eggs
  • 750ml / 3 cups milk, I used whole milk
  • 1 tbsp This is an affiliate link.dijon mustard
  • 1 tsp This is an affiliate link.Worcestershire sauce
  • 1 tsp salt
  • 1/4 tsp Spanish paprika, or smoked paprika
  • 100g / 1 cup white cheddar
  • 100g / 1 cup Red Leicester cheese
  • 2-3 green onions, sliced
  • 3 tbsp parsley, chopped
  • 400g / 6 cups brioche loaf, cubed

Instructions 

  • Remove sausages from their casings and cook them in a large frying pan over medium heat for about 5 minutes, then add diced chorizo and cook while stirring for a couple of minutes. Remove to a large bowl and set aside. 
  • To the same frying pan add chopped onion, red bell pepper and cook over low heat for 5 minutes, then add mushrooms, a pinch of salt and Spanish paprika and continue cooking until mushrooms are done and the liquid has evaporated, then add minced garlic clove and cook for 20-30 seconds. Combine with the cooked sausages and chorizo. 
  • In a separate large bowl combine the eggs, milk, dijon mustard, Worcestershire sauce, salt and Spanish paprika, whisk until well blended. To the bowl with the meat and vegetables, add the the cubed brioche, green onions, parsley and both cheeses and gently mix everything together. Then transfer the mixture into a buttered 13X9 inch casserole dish and pour the egg mixture over it. Cover with aluminium foil and refrigerate overnight.
  • In the morning preheat the oven to 180C/350F and bake the breakfast casserole uncovered for 50-60 minutes until puffed up all over and the center is no longer wet. 

Notes

Alternatively you can bake this casserole immediately if desired. 

Nutrition

Calories: 572kcal | Carbohydrates: 31g | Protein: 27g | Fat: 37g | Saturated Fat: 18g | Cholesterol: 313mg | Sodium: 1047mg | Potassium: 457mg | Sugar: 6g | Vitamin A: 1675IU | Vitamin C: 23.4mg | Calcium: 338mg | Iron: 2.3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this recipe?Let us know how it was!
Julia from Vikalinka

About Me

Julia Frey is a London based recipe developer and photographer. Julia founded Vikalinka in 2012 with the main mission to provide her readers with delicious and accessible everyday recipes, which could be enjoyed by everyone.

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2 Comments

  1. Kaley says:

    Could you make this without cheese?

    1. Julia Frey (Vikalinka) says:

      Yes you can. Cheese adds the salt to the casserole, so you might want to increase the salt if the cheese is removed.