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a slice of breakfast casserole on a white plate with avocado, a bowl of oranges and a white mug.

High Protein Breakfast Casserole

Start your day off right with this High Protein Breakfast Casserole. Made with a delicious combination of roasted sweet potato, spiced ground chicken, vegetables and eggs, it's a well-balanced meal that's perfect for meal prep! 
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Prep Time 20 minutes
Cook Time 55 minutes
Total Time 1 hour 15 minutes
Course Breakfast
Servings 8

Ingredients
  

  • 1 lb sweet potato cut into 1/2 inch pieces
  • 3 tbsp avocado oil divided
  • 1 3/4 tsp sea salt divided
  • Freshly ground black pepper
  • 1 lb ground chicken see notes
  • 1 tsp sweet paprika
  • 1 tsp dried thyme
  • 1 tsp garlic powder
  • 1/4 red pepper flakes
  • 1 medium onion diced
  • 1 red bell pepper diced
  • 3 cups baby spinach roughly chopped
  • 10 large eggs
  • 1/2 cup milk
  • 1/2 cup shredded cheddar cheese or to taste

Instructions
 

  • Preheat the oven to 425°F. Grease a 9x13 baking dish.
  • Place sweet potato on a baking sheet lined with parchment paper. Add 1 tbsp of oil, 1/2 tsp sea salt and black pepper. Toss to coast and spread out in an even layer. Bake for about 20 minutes, or until just fork tender, stirring halfway through. Remove sweet potatoes from the oven and reduce heat to 350°F. 
  • While the sweet potato is cooking, heat 1 tbsp oil in a large skillet over medium-high heat. Add the chicken and season with spices and 3/4 tsp sea salt. Break apart with a spatula or wooden spoon and cook until browned. Once done, transfer the chicken to the baking dish. 
  • Add the remaining 1 tbsp of oil to the skillet, followed by the onion and bell pepper. Reduce heat to medium and saute until just softened, about 4-5 minutes. Add the spinach and cook for 1 more minute. Remove from the heat and place in the baking dish with the chicken, along with the roasted sweet potato. 
  • In a large mixing bowl, whisk together the eggs, milk, remaining salt (1/2 tsp) and black pepper. 
  • Pour into the baking dish and top with cheese. Bake for 30-35 minutes or until the edges start to brown and the centre is just set. Allow to sit for 10 minutes before serving.

Video

Notes

You could also use ground turkey, ground beef or ground pork. If you have a lot of fat leftover after browning your meat, remove the meat with a slotted spoon and leave 1 tbsp worth of fat in the pan (omit the 1 tbsp of oil called for when sautéing the vegetables). 
To make this dairy-free, use unsweetened almond milk instead of regular milk and omit the cheese (or use a dairy-free cheese). 
Did you make this recipe?Let me know how it was!