This Vegan Frittata (Breakfast Casserole) is perfect for your breakfast or brunch, made easily on a sheet pan! The filling, made with tofu, is loaded with burst tomatoes, caramelised onions and sautéed mushrooms making for a flavourful dish. It’s great for weekends, holidays and special occasions.
Thanks to Wilton for sponsoring this blog post! Thanks so much to you my readers for supporting the brands who support Jessica in the Kitchen! All texts and opinions are my own.
Oh my gosh – this Vegan Frittata aka Breakfast Casserole is like the vegan savoury breakfast of my dreams! When I used to eat eggs, I loved quiche and frittatas. I knew I wanted the same taste and texture when I went vegan and YES – I have found it! First, it was my Quiche Muffins. Then my Vegan Quiche (with an incredible crust). Now? Vegan Frittata 😍.
This is essentially a crustless quiche and OH SO GOOD!! It’s so easy to make, friends. Just pour into your gorgeous sheet pan, bake, slice and enjoy! It has the perfect taste, texture, and is so customisable. I make this on weekends, and enjoy it throughout the week because it reheats perfectly for over a week!
If you’re eyeing this and thinking “man that’s a gorgeous sheet pan, and that cooling rack! Those whisks, measuring cups and bowls?! Wow!” Then you’re right – they are gorgeous! They’re all the new Wilton Navy and Gold Kitchen Collection. I’ve been a LONG time user of Wilton products.
I remember when I started my baking company and my parents dropped me off at Michael’s for the first time. Picture this: me, standing in the bakeware aisle for the entire hour. I grabbed as many Wilton products as I could (and they’re so well priced that it was a lot!) and I was like a kid (okay newly turned adult) in a candy store. Fast forward 11 years later and I still have so many of those products (down to my Cake Lifter and my baking sheets)! They’ve served me my entire food career and I love how stunning this new line is!
These are the beauties I used here:
Stylish Silicone Prep Bowl Set, 3-Piece: I wish I could record the convo when Gav and I first opened these. I literally squealed! They’re so gorgeous that you’ll definitely be seeing them in endless future photos! More importantly, they’re so easy to clean, are accurate measurements and store so well!
Navy Blue and Gold Kitchen Utensils Mix and Measure Set, 10-Piece: such beauties! I love how lightweight they are, and that beautiful colour. The whisks have some little stands which I love too.
I 100% recommend these as Christmas gifts, friends, and for every gift in between! They’re so well priced and will delight any one, from beginner to baker and everyone in between!
Tofu: always use medium, firm or extra firm tofu. Don’t use silken tofu (silken tofu will be a cardboard box not in the fridge section and it’ll say “silken” on it in case you’re buying groceries online).
Nutritional yeast: get the best quality you can find! Also ensure it’s the fortified one with B12 for the best protein and nutrients.
Fillings: I used mushrooms, spinach and tomatoes for my filling ingredients in this Vegan Frittata. Feel free to switch it up! You can add vegan cheese, vegan meat replacements (vegan ham seems delightful here especially for special occasions!) and anything else you love! Just nothing too heavy that might sink, like large vegan sausages.
Turmeric: don’t add too much or you’ll get a weird neon yellow colour! It’ll look light at first, but it gets more prominent as it bakes!
Baking powder: always ensure yours is fresh!
black salt (kala namak) – okay this isn’t necessary, but it really brings out that authentic taste! If you have it use it, if you want it buy it, but it isn’t a deal breaker! A little goes a LONG way.
Grease your 9×13 Wilton Oblong Pan with some vegan butter (on the wrapper or parchment paper) and set it aside. Press your tofu for at least 20 minutes and set aside until you are ready for it. I start this, then start on the rest of the recipe. By the time you’re ready for it the time would’ve elapsed.
In a pan over medium high heat, heat 1 tablespoon of the coconut oil. Add in the onions and stir to combine. Lower heat to medium and stir the onions for 15 minutes (you could even go up to 30 minutes depending on the time you have if you want to further caramelise them, stirring often).
After the onions are cooked down, add in the extra oil and the tomatoes, garlic and mushrooms. Bring heat back up to medium high and sauté for 15 minutes, stirring occasionally, until tomatoes are slightly broken down. Season with salt and pepper to taste.
Add in the spinach and sauté for another two minutes until it is wilted. Remove from heat and set aside.
In a high powered blender, add the tofu, almond milk, nutritional yeast, sea salt and black pepper, turmeric, baking powder and vegan parmesan. (You can do this while the onions sauté to save time.) If you have any kala namak, add it now. Blend on high until everything is completely smooth and there are no lumps, about 2 to 3 minutes. I blended mine twice to ensure this.
Add the tomato filling to your greased 9×13 pan. Pour the tofu mixture over the tomato filling, and lightly stir them both together to combine.
Tent it with foil, and bake for 20 minutes. Gently remove the foil and bake for an additional 20 minutes until the top is golden brown and the frittata is cooked through.
Allow to cool for about 10 minutes, then cut into and serve. Enjoy!
Always press your tofu. Don’t skip this. This will remove any tofu flavour or liquids so it can absorb all that yummy frittata like liquid. Also always ensure you’re buying regular tofu and NOT silken tofu. Check out my tofu 101 post for the difference.
Blend until incredibly smooth. If you don’t have a high powered blender, blend it again! This will affect the end texture – you know your blender, so blend accordingly!
If you are looking for more vegan dessert recipes, check out Wilton.com! Enjoy friends! If you make this Vegan Frittata, please snap a photo and tag #jessicainthekitchen on Instagram! We’d also love if you would leave a comment below, and give the recipe a rating! Thanks so much!
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