Easy Buffalo Chicken Breakfast Casserole (Whole30)

Buffalo chicken breakfast casserole made with eggs, chicken, buffalo sauce, and veggies. A perfect protein-packed and healthy breakfast and great for meal prep. Gluten-free, dairy-free, paleo, Whole30, and low-carb.

We are back with another buffalo chicken recipe and this time we are doing it up at breakfast with this buffalo chicken breakfast casserole!

If you are new here, buffalo is one of my favorite flavors. We have air fryer buffalo wings, buffalo chicken soup, and even buffalo cauliflower and buffalo brussel sprouts. I can’t be stopped!

This recipe mixes the classic flavors of buffalo chicken into an easy breakfast casserole. Made with shredded chicken and eggs for lots of protein and some veggies for added micronutrients. The carrots bring a little sweetness to balance out the spiciness too. 

It’s super easy to make ahead of time and then have it all week for a quick and healthy breakfast. We also love the leftovers for an easy lunch and dinner!

Buffalo chicken breakfast casserole ingredients

• shredded chicken
• onion
• carrots
• garlic powder
• dried dill
• buffalo sauce
• eggs
• oil
• salt and pepper

How to make buffalo chicken breakfast casserole

1. Preheat the oven to 350 degrees Fahrenheit and grease a 7×11 baking dish (or a similar size).
2. Heat a small-medium skillet or nonstick pan over medium-low heat and let it get hot. Add your oil and let it get hot.  Then add onions and salt and pepper and saute for 2-3 minutes, stirring occasionally. Next add carrots with a little more salt and pepper and saute for 2-3 minutes. Remove from heat.
3. In the greased baking dish, add your carrot mixture. Add shredded chicken, spices, and 1/4 cup buffalo sauce and mix well to combine. You can also do this in a large bowl, but I find doing it in the casserole dish saves an extra dish to wash.
4. In a large bowl, whisk eggs with 2 tablespoons buffalo sauce and a pinch of salt and pepper. Pour into the casserole dish with chicken mixture and mix well to combine and eggs are evenly distributed. If you like (recommended), you can drizzle a little buffalo sauce on top.
5. Bake for 35-40 minutes until eggs are cooked through. Top with a little hot sauce if you like and enjoy!

Can you put raw chicken in a casserole?

Yes, you can put raw chicken in a casserole, but you will need to make sure it cooks through and reaches 165 degrees Fahrenheit.

If you to use raw chicken for this casserole, simply dice it into 1/2-1 inch pieces, mix with the veggie mixture, and follow the directions as written. Since this recipe has to cook the eggs, you should be fine with cooking for 35-40 minutes in the oven.

Meal prep and storage

• partial prep – prep your chicken and cook the veggie mixture and allow them to cool. If you are making homemade buffalo sauce, make that as well. Store them the fridge until you are ready to bake. When you are ready, add them to a greased baking dish, add you eggs, spices, buffalo sauce, and bake.
• full prep – just follow the directions as written
• storage and heating it – allow to cool completely. Store either in the pan you cooked the casserole in (helps minimize more dishes) or in a glass container. Cover with a lid (if you have one) or saran wrap. To heat it up, pop in the microwave for a couple of minutes until warmed through.
• freezing – make it according to the directions and let cool completely. You can either freeze the whole dish as-is or cut it into individual pieces and freeze it separately. When ready to eat, place in the fridge and allow it to defrost. Heat up when ready to eat. It should last in the freezer for up to 3 months.

What to serve with chicken breakfast casserole

Here are a few sides to pair with the casserole whether you want to keep it low-carb or add some carbs for a balanced meal.

• side salad
• fresh fruit
• roasted vegetables
• air fryer potatoes, breakfast potatoes, or hash browns
• rice
• bread or toast

Substitutions or additions

Here are a few substitutions:

• shredded chicken – shredded chicken breasts or chicken thighs will work. You can either make it at home or use a store-bought rotisserie chicken. Ground chicken can also be used instead of shredded. It will need to cooked before added to the casserole.
• garlic powder – you can use garlic cloves instead. Use one and saute with onions.
• buffalo sauce – homemade or store-bought buffalo sauce will work. Hot sauce (I like Frank’s) will work the same as buffalo sauce. I like using Frank’s original if not using buffalo sauce.
• eggs – egg whites can be used instead of whole eggs. This will lower the fat and increase the protein in the casserole.
• oil – any kind of neutral oil will work or butter/ghee.

And a few additions:

• veggies – the more the merrier! Potatoes, zucchini, spinach, or bell peppers would all be great additions. They will need to be cooked before adding to the casserole.
• cheese – sprinkled with cheddar cheese or pepper jack before baking would be delicious!

More healthy breakfast recipes

• Chicken Apple Sausage Patties
• Sweet Potato Breakfast 3 Ways
• Coffee Overnight Oats
• Breakfast Salad with Poached Eggs
• Sweet Potato Breakfast Casserole

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