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Home » Recent Posts » Recipes » Breakfast Casserole Recipe | Vegan & Gluten Free!

Last Updated April 15, 2025. Published February 10, 2025 By Abbey Sharp 8 Comments

Breakfast Casserole Recipe | Vegan & Gluten Free!

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Medically reviewed by Abbey Sharp, Registered Dietitian (RD), BASc.

This vegan breakfast casserole recipe is a delicious make-ahead breakfast that can be enjoyed by vegans and omnivores alike! It is also completely gluten free and family friendly.

Birds eye view of vegan breakfast casserole in a casserole dish with a bowl of spinach in the background.

I am a huge breakfast person. A good breakfast with my morning coffee is easily the highlight of my day. So when it comes to breakfast recipes, I do not mess around! For me, whether breakfast is savoury or sweet, it absolutely has to be filling, nutritious, and of course – hella delish!

So with that criteria in mind, you KNOW you are in for a treat with this vegan breakfast casserole recipe. This casserole is everything you want out of a standard savoury breakfast – you got your hash browns, your vegan sausage, veggies, and of course, a yummy egg flavour and texture made possible by vegan culinary magic!

But trust me – whether you are vegan or not, I promise you will love this breakfast casserole recipe because it is just that good!

Table of contents

  • Why This Recipe Works
  • Key Ingredients
  • How to Make This Recipe
  • Expert Tips
  • Recipe FAQs
  • More Recipes You Might Like

Why This Recipe Works

If you are a breakfast person (regardless if you are vegan or not), you absolutely NEED this breakfast casserole recipe in your repertoire and here’s why:

  • Cheesy and flavourful
  • Gluten free
  • Plant-based
  • Family friendly
  • Nutrition packed (high in protein and fibre!)
  • Great for meal prepping

Key Ingredients

Flay lay image of portioned ingredients for the vegan breakfast casserole recipe including bell pepper, vegan sausage, green onion, mushroom, salt, vegan cheese, garlic, onion, tofu,  oat flour, nutritional yeast, turmeric, potato, and spinach.

Potato – we use yellow potato to make homemade hash browns for the recipe. In my opinion, if there ain’t any crispy hash included in my breakfast casserole, I am not interested! But for real, this step is pretty important but you can totally hack these if you want to save time (see expert tips).

Tofu – I am such a sucker for all things tofu scramble as they really mimic the texture of eggs so nicely! To make this vegan breakfast casserole extra flavourful, we also make sure to throw in some nutritional yeast, and turmeric for a yellow colour.

Vegan Sausage – Like I said, we are doing things RIGHT with this vegan casserole and not skipping any corners. Which means that sausage must be included, but in this case – the vegan variety.

Veggies – When it comes to veggies, there’s really no going wrong with whatever you throw into this breakfast casserole recipe. You can totally take it as an opportunity to clear out whatever you have remaining in your fridge – otherwise, we like to add mushrooms, bell pepper, green onion, and spinach.

How to Make This Recipe

Three side by side images showing how to prepare and cook the shredded potato.

Step 1: Grate 4 large potatoes and soak in a large bowl of cold water for 5-10 minutes.

Step 2: Strain, squeeze out excess water and transfer to a clean tea towel to soak up any extra moisture.

Step 3: In a large non-stick pan, on medium heat, add 2 tablespoons of olive oil, the onions, the shredded potatoes and cook potatoes until soft and some of the edges get crispy (about 10 minutes). Season with sea salt, garlic powder and pepper to taste. Set aside.

Two side by side images showing how to prepare the sausage and vegetables.

Step 4: In the same large pan, add another tablespoon of oil over medium heat. Crumble up the breakfast sausage in the pan and cook until cooked through about 7-10 minutes. Transfer cooked sausage to a large bowl.

Step 5: To the same large pan, add the garlic, mushrooms and peppers and cook for 7-10 minutes. Toss in the greens cook until wilted. Transfer everything to the same large bowl with the sausage. 

Three side by side images showing how to prepare wet mixture, combining with cooked ingredients, and layering in a casserole dish.

Step 6: In a high-speed blender or food processor, combine the tofu, nutritional yeast, flour, turmeric, sea salt, and blend until smooth. 

Step 7: Pour the tofu mixture in the large bowl with all the other cooked ingredients.

Step 8: Combine and pour overtop the potato layer in the casserole dish. Top with the shredded cheese and chopped green onions. Bake in preheated oven for 35-45 minutes until edges are golden and the top feels set.

Expert Tips

To save time, consider buying 1 to 2 packages of frozen shredded hash browns. Or you could use crumbled up frozen hash browns. But please note, that not all store-bought frozen hash browns are gluten-free.

On that note, if you have food allergies or celiac disease, it’s also important to ensure that the brand of vegan sausage you get is certified gluten-free.

Blending a combination of soft and firm tofu creates the best texture. You’ll need a total of 900g of tofu to make the vegan egg mixture.

Recipe FAQs

How long does this keep in the fridge?

This vegan breakfast casserole should stay fresh for about 3-4 days in the fridge.

What can I serve this with?

You can serve this casserole with a side salad, some roasted veggies, or even some fruit! I would also highly recommend dipping each bite into some ketchup or salsa because it’s totally delish.

How can I warm up the left overs?

You can warm up leftover slices in a pan with a little vegan butter or olive oil. Doing so crisps up the bottom layer of potatoes, making it extra yummy.

Is this breakfast casserole recipe kid friendly?

Yes, definitely! It is super tasty even for non-vegans. If your kiddo loves the texture of eggs, then they will certainly love this for their brekkie.

Close up of breakfast casserole on three stacked white plates with two forks on the side with a bowl of spinach and the remaining casserole in the background.

More Recipes You Might Like

Here are some more of our favourite vegan breakfast and brunch recipes on the blog!

  • Vegan Breakfast Burrito with Tofu Scramble
  • Vegan Breakfast Sausage with Maple & Apple
  • Healthy Beans on Toast
  • Sweet Potato Breakfast Bowl
  • Vegan Breakfast Sandwich with Tofu

What would you add to this breakfast casserole recipe? I’d love to know! Let me know your thoughts down in the comments below!

Vegan Breakfast Casserole (Gluten Free)

This vegan breakfast casserole is a delicious make-ahead breakfast that can be enjoyed by vegans and carnivores alike! It is also totally gluten free and family friendly.
5 from 4 votes
Print Pin Rate
Coursebrunch, Breakfast
CuisineAmerican
DietVegan, Gluten Free
Prep Time20 minutes minutes
Cook Time1 hour hour 15 minutes minutes
Total Time1 hour hour 35 minutes minutes
Servings5 -6
Calories400kcal
AuthorAbbey Sharp

Ingredients

Homemade Shredded Hash Browns

  • 4 large yellow potatoes shredded (or 8 smaller potatoes)
  • 1 small white onion small dice (1 cup)
  • 2 tablespoons extra virgin olive oil
  • 1 teaspoon sea salt
  • 1/2 teaspoon garlic powder
  • 1/4 teaspoon fresh ground pepper optional

Casserole Ingredients

  • 1 tablespoons extra virgin olive oil
  • 1 package 400g Beyond Sausage (4 sausages)
  • 1 small container white mushrooms 227g, sliced/small dice
  • 2 fresh garlic cloves minced
  • 1/2 red pepper diced
  • 1/2 yellow bell pepper diced
  • 1/2 green pepper diced
  • 3 handfuls organic baby spinach 142g, roughly chopped
  • 2 x 300g blocks soft tofu
  • 1 x 300g block firm tofu
  • 1/4 cup nutritional yeast
  • 1/4 cup GF oat flour or bean flour
  • 1 teaspoon turmeric powder
  • 1 teaspoon sea salt
  • 1 cup grated vegan cheese
  • 3 green onions chopped (or fresh chives)

Instructions

  • Preheat oven to 400°F. Grease a large 13 x 9-inch casserole dish with olive oil.
  • Wash and prepare all the other ingredients. Doing so will make the final preparation and assembly quicker.
  • Wash and grate 4 large potatoes (skin optional). Soak the grated potatoes in a large bowl of cold water for 5-10 minutes. Strain, squeeze out excess water and transfer to a clean tea towel to soak up any extra moisture.
  • In a large non-stick pan, on medium heat, add 2 tablespoons of olive oil, onions, shredded potatoes and cook until soft and some of the edges get crispy (about 10 minutes). Season with sea salt, garlic powder and pepper to taste. Transfer to 13 x 9 casserole dish.
  • In the same large pan, add another tablespoon of oil over medium heat. Crumble up the breakfast sausage in the pan and cook until cooked through about 7-10 minutes. Transfer cooked sausage to a large bowl.
  • To the same large pan, add a little extra olive oil if necessary. Add the garlic, mushrooms and peppers and cook for 7-10 minutes. Toss in the greens cook until wilted. Transfer everything to the same large bowl with the sausage.
  • In a high-speed blender (or food processor), combine the tofu, nutritional yeast, flour, turmeric, sea salt, and blend until nice and smooth.
  • Pour the tofu mixture in the large bowl with all the other cooked ingredients and combine. Pour mixture overtop the potato layer in the casserole dish. Top with the shredded cheese and chopped green onions.
  • Bake in preheated oven for 35-45 minutes until edges are golden and the top feels set. Let cool for 10-15 minutes before serving. Enjoy!

Notes

  • To save time, consider buying 1 to 2 packages of frozen shredded hash browns. Or you could use crumbled up frozen hash browns. But please note, that not all store-bought frozen hash browns are gluten-free.
  • On that note, if you have food allergies or celiac disease, it’s also important to ensure that the brand of vegan sausage you get is certified gluten-free.
  • Blending a combination of soft and firm tofu creates the best texture. You’ll need a total of 900g of tofu to make the vegan egg mixture. 
  • Serving a slice of this breakfast casserole with a side salad is excellent! Dipping each bite into homemade ketchup or salsa also compliments this recipe well.
  • You can warm up leftover slices in a pan with a little vegan butter or olive oil. Doing so crisps up the bottom layer of potatoes, and it’s delicious!

Nutrition

Calories400kcalCarbohydrates52gProtein14gFat16gSaturated Fat3gSodium1220mgPotassium1078mgFiber7gSugar4gVitamin A573IUVitamin C84mgCalcium84mgIron4mg
Mention @AbbeysKitchen or tag #abbeyskitchen if you try and share this recipe!

Updated on April 15th, 2025

Abbey Sharp

Abbey Sharp is a Registered Dietitian (RD), regulated by the Ontario College of Dietitians. She is a mom, YouTuber, Blogger, award winning cookbook author, media coach specializing in food and nutrition influencers, and a frequent contributor to national publications like Healthline and on national broadcast TV shows.

CONSUMER NOTICE: You should assume that the publisher of this website has an affiliate relationship and/or another material connection to the providers of goods and services mentioned on this website and may be compensated when you purchase from a provider. You should always perform due diligence before buying goods or services from anyone via the Internet or offline.

About Abbey Sharp

Abbey Sharp is a Registered Dietitian (RD), regulated by the Ontario College of Dietitians. She is a mom, YouTuber, Blogger, award winning cookbook author, media coach specializing in food and nutrition influencers, and a frequent contributor to national publications like Healthline and on national broadcast TV shows.

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Reader Interactions

8 Comments

  1. Laurie says

    September 29, 2024 at 4:41 pm

    Can you share what kind of tofu you used? There are so many different brands but I’d like to see if my brands compare to yours. Thanks

    reply to this comment
    • Abbey Sharp says

      September 30, 2024 at 10:49 am

      I don’t stick to one brand, but most should work as long as you get the textures specified in the recipe card.

      reply to this comment
  2. Dawn Sneddon says

    April 3, 2024 at 5:41 pm

    nope, the potatoes were uninspired. I woul maybe do the rest and do home fries on the side bit honestly? I spent over an hour of prep time and meh

    reply to this comment
  3. Chris M says

    January 24, 2023 at 8:30 pm

    Can the leftovers be frozen?

    reply to this comment
    • Abbey Sharp says

      January 30, 2023 at 7:29 am

      I haven’t personally tried it, but I think it would work. Let me know how it goes!

      reply to this comment
  4. Bev says

    December 11, 2022 at 10:17 am

    5 stars
    This looks incredible! I haven’t tried making this yet, but I can’t wait to put this together for my next weekend breakfast.

    reply to this comment
  5. Jen Klovee-Smith says

    December 18, 2021 at 3:34 pm

    Hi Abbey! I have a quick question. Can I prep this recipe on Christmas Eve and put it in the oven to bake Christmas morning? I’m not clear on that.

    Thank you,
    Jen

    reply to this comment
    • Abbey Sharp says

      December 20, 2021 at 10:33 am

      Definitely

      reply to this comment
5 from 4 votes (3 ratings without comment)

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