This protein French toast casserole is the quickest, easiest, and most delicious high protein breakfast. The entire casserole has 60 grams of protein, can be prepared in just 5 minutes, and only needs 5 main ingredients. It’s an easy recipe you can even make the night before, and wake up to a creamy, sweet, protein packed French toast casserole, a great alternative to traditional French toast.

protein French toast casserole in a white baking dish on a pink napkin.

Protein French toast casserole will quickly become one of your favorite breakfasts for a busy weekday morning. You can meal prep it on Sunday, and enjoy a week of quick, take and heat breakfasts. It’s so easy to make, only needs 5 simple ingredients, and can be prepared in less than an hour. Additionally, it also just so delicious that you can serve it on a special occasion, and feel good about knowing you’re giving your family a healthy, but still yummy and indulgent breakfast. Plus, if you want to really boost the health and protein in this easy breakfast, you can do what I do and serve a side of Greek yogurt, sausage, bacon, or a protein mango smoothie– all of which are great options!

WHY YOU’LL LOVE THIS EASY RECIPE

It’s super simple to prepare
Only needs 5 main ingredients
Can be baked in under an hour, or prepared the night before
Has 60 grams of protein!
Refined sugar free
Great healthy breakfast option for special occasions

INGREDIENTS FOR A HEALTHY PROTEIN FRENCH TOAST BAKE

protein french toast casserole ingredients on a white backdrop labeled with black text.

Loaf of Italian bread: I use store-bought from the bakery, but you could also use a hearty bread like sourdough
Eggs: This recipe calls for whole eggs to get the most protein as well as healthy fats from the yolk
Milk: I like whole milk in this casserole, but soy milk is a great dairy free option that provides the same amount of protein
Peanut butter powder: I find that Crazy Richard’s is the best because there’s no added sugar, but Peanut Butter Co is also a great option
Monk fruit: My favorite is Whole Earth, but Lakanto is also a great choice. If you don’t have monk fruit, regular sugar will work, but this recipe won’t be sugar free
Extras: Personally, I like to add blueberries for a burst of freshness, as well as mixing vanilla and salt into the egg mixture to boost the flavor.

HOW TO MAKE A PROTEIN FRENCH TOAST CASSEROLE

healthy french toast bake ingredients on a white backdrop — **Prepare your ingredients**

egg custard in a measuring cup. — **Whisk together egg mixture**

custard being poured over cubed bread. — **Let bread soak up custard for 20 minutes**

monk fruit and peanut butter powder in a wood bowl. — **Combine monk fruit and peanut butter powder**

protein french toast casserole in a white baking dish with blueberries. — **Layer soaked bread, blueberries, and peanut butter mixture then bake at 400 F for 35-40 minutes**

Cut up your bread into 1 inch cubes and place in a large bowl
In a medium sized measuring cup with a spout, whisk together the milk, eggs, & vanilla and salt (if using)
Pour the egg mixture over the bread cubes, stir them with a wooden spoon, and let the bread soak up the custard for 20 minutes
While the bread is absorbing the custard, pre-heat the oven to 400 degrees f and grease an 8×8 inch baking dish with cooking spray. You can also mix the monk fruit and peanut butter powder together in a small bowl and set that aside.
After 20 minutes, put half of the soaked bread cubes on the bottom of the dish, making sure they’re evenly spread out. Sprinkle over 1/4 cup of blueberries and half of the monk fruit/ peanut butter mixture. Repeat the layers with the rest of the bread cubes, 1/4 cup of blueberries, and the rest of the sweet peanut butter topping
Place the entire casserole into the pre-heated oven and bake for 35-40 minutes until the top pieces are a dark golden brown. (If it’s getting too dark, but there’s still baking time left, you can cover the top with aluminum foil and continue baking)

MORE EASY BREAKFASTS YOU MIGHT LIKE

vegan sourdough French toast topped with strawberries, blueberries, and syrup on a white plate — Sourdough French Toast

healthy 5 ingredient banana bread muffins on a cooling rack on top of a wooden cutting board on a white backdrop. A wooden bowl of coconut sugar is on the right hand side, and 2 of the muffins are turned on their sides — 5 Ingredient Banana Muffins

4 pieces of toast made in the air fryer displayed on a marble and wood cutting board. The board is sitting on top of a lilac colored linen napkin — Air Fryer Toast

RECIPE VARIATIONS

Switch out the blueberries for raspberries or blackberries (I recommend not using strawberries because of their high water content)
Use sourdough in place of the Italian bread. Sourdough is also often thought of as a better option for people with IBS or gluten sensitivities. I am NOT saying it is ok for everyone though, please do your own research and use your judgement.
You could add a scoop of your favorite protein powder to the monk fruit topping
Add cinnamon to the custard for more flavor

healthy French toast bake in a white baking dish with a piece cut out.

EXPERT TIPS

Cut the bread into even size cubes so they bake evenly
This is a great meal prep recipe, much like my pancakes, this can be made the night before for easy breakfasts in the morning
It may look done after 30 minutes, but trust me it really needs 35-40. You can cover it with foil if the top is getting too dark for you
Let the protein French toast casserole sit for 10-15 minutes before cutting into is for best results
Lakanto has a great sugar free maple syrup that’s sweetened with monk fruit
You can use almond butter powder in place of the peanut butter powder if you have a peanut allergy
Soy milk has the same amount of protein as whole milk- making is a great dairy free option
Check out this post for side dish options

FREQUENTLY ASKED QUESTIONS

Does French toast have any protein? Yes, this entire casserole has 60 grams of protein! Way more than traditional French toast
How do I store leftovers? You can keep any leftovers in an airtight container in the fridge for up to 5 days.
What is the best way to reheat this French toast bake? This reheats great in the toaster oven or a non-stick pan. Heat it at 350 degrees f for 8-12 minutes, or in a pan with a lid over medium heat until it is warm enough for you.

a piece of protein French toast on a gray plate with syrup.

Did you make this easy, healthy protein French toast casserole? If you did, I would greatly appreciate you leaving a comment and star rating down below. In addition, you can also follow me on Instagram @coleinthekitchen and tag me if you make this or any other of my easy recipes.