Easy, Protein-Packed Overnight Veggie Breakfast Casserole

This breakfast casserole is high in protein and loaded with antioxidants for a nourishing start to your day.  The best part?  It can be made ahead of time, so if you have weekend guests simply pop it into the oven in the morning and enjoy your company.  

It contains three of the five food groups – protein, dairy, and vegetables.  Pair it with a slice of whole-grain bread and a piece of fruit for a well-rounded meal.  

This recipe is gluten-free and vegetarian as written; it can be easily customized to fit your family’s food preferences or needs.

If you’re using it for meal prep, it’ll last you approximately six days.  You’ll be happy to know that the leftovers taste just as good, if not better, reheated throughout the week.

Easy, Protein-Packed Overnight Veggie Breakfast Casserole

6

serves

247 Cal

Per serving

This breakfast casserole is high in protein and loaded with antioxidants for a nourishing start to your day.  The best part?  It can be made ahead of time, so if you have weekend guests simply pop it into the oven in the morning and enjoy your company.

View full recipe

 

Optional ingredient substitutions 

• Hash browns – You can easily swap them for shredded sweet potatoes, quinoa, or 4 slices of crusty sourdough bread. 
• Vegetables –  Feel free to use any vegetables that you like, such as sliced mushrooms or jalapeños.
• Spinach – For more of a texture, use chopped kale instead.  Not a fan of cooked greens?  Simply serve the casserole with a side salad of arugula instead.
• Shallot – Swap ½ medium sweet onion in place of the shallot or leave it out altogether.
• Whole eggs – To adjust the egg content, replace one egg yolk for two egg whites.  You can also choose omega-3 enriched eggs to boost your healthy fat intake.
• Milk – Any milk or unsweetened dairy alternative will work.  Unsweetened almond milk will be lower in calories, while low-fat cow’s milk or unsweetened soy milk will add a little extra protein. 
• Cheddar cheese – Any shredded cheese works in this recipe.  A favorite of ours is feta for some extra tangy flavor.
• Italian seasoning – The seasonings are intentionally kept simple, but feel free to jazz it up with fresh herbs, spices, or seasoning blends.
• Topping ideas – We recommend adding hot sauce, salsa, avocado slices, guacamole, or thinly sliced green onions on top for additional flavor.