No matter how busy my mornings get, having a delicious and filling breakfast is a must. That’s why I’m all about this sausage and egg Whole30 breakfast casserole. It’s the perfect solution for those hectic weekdays and lazy weekends, creating a hearty dish that you can make ahead and enjoy throughout the week. Plus, it’s wholesome, packed with protein, and satisfies every member of the family.
What sets this casserole apart is its fantastic blend of fresh vegetables and savory sausage, creating a delightful flavor with each bite. The combination of eggs, peppers, onion, and spinach not only gives it an appealing appearance but also a nutritious punch. This dish is perfect for anyone, whether you’re diving into Whole30, looking to meal prep, or simply wanting to elevate your breakfast game.
“This casserole is a game changer for busy mornings.”
Why you’ll love this
- Quick prep time: Ready to bake in just 15 minutes.
- Easily adaptable: Customize ingredients to fit your taste.
- Make-ahead friendly: Perfect for meal prepping and serving throughout the week.
- Fewer dishes: One pan means less mess after cooking.
- Freezer-friendly: Great for batch cooking to enjoy later.
Step-by-step overview
To make this sausage and egg Whole30 breakfast casserole, you will begin by prepping all your vegetables and whisking together the eggs. You’ll cook up the turkey sausage and sauté your onions, bell peppers, and spinach in the same pan. Combine everything in a baking dish, pour the egg mixture over the top, and then bake until set. It’s as simple as that!
What you’ll need
- 1 pound Whole30 approved breakfast sausage or turkey sausage if not Whole30
- Olive oil for pan
- 1 white or yellow onion, diced
- 1 green bell pepper, diced
- 1 red bell pepper, diced
- 2 cups fresh spinach, chopped (or 16 ounces frozen, thawed and drained)
- 1/2 tsp garlic powder
- 1 tsp salt-free Mrs. Dash Onion & Herb Seasoning + sprinkle on top of casserole
- Salt and pepper, to taste
- 12 large eggs
- Hot sauce (optional to taste)
Ingredient notes & swaps
- Sausage: Feel free to use chicken sausage or your favorite protein.
- Vegetables: Swap in broccoli, zucchini, or whatever veggies you have on hand.
- Eggs: For a dairy-free version, check egg alternatives if needed.
- Hot sauce: A kick of hot sauce can enhance the flavors, but it’s optional.
How to make it
Making this sausage and egg Whole30 breakfast casserole is straightforward and quick. Here’s how to do it:
- Preheat the oven to 350 degrees F.
- Dice the green and red bell peppers along with the onion. Chop the spinach and set aside.
- In a medium bowl, crack 12 eggs and whisk them together well. If desired, add a few drops of hot sauce for extra flavor and mix until combined.
- In a large skillet over medium-high heat, add a drizzle of olive oil to coat the pan. Cook the turkey sausage until fully browned and cooked through. Drain the meat and set it aside.
- Using the same skillet, add the diced onions and peppers over medium heat. Cook until they start to soften, about 2 minutes. Then, incorporate the chopped spinach and cook for an additional minute before removing from heat.
- Return the cooked sausage to the skillet and add garlic powder, Mrs. Dash seasoning, salt, and pepper. Stir until everything is well combined.
- Pour the sausage and veggie mixture into a 9×13 glass baking dish sprayed with non-stick olive oil.
- Top evenly with the egg mixture and sprinkle a little onion and herb seasoning on top.
- Bake for 25-30 minutes or until a knife inserted in the center comes out clean.
- Let it cool for 5-10 minutes before slicing and serving. If desired, add salsa for extra flavor!
Pro Tip: For a fluffier texture, whip the eggs thoroughly to incorporate air before baking.
If you like a light golden brown top and a firm texture, that’s your cue to take it out of the oven.
Helpful cooking tips
- Use pre-cooked sausage: This can cut down on cooking time significantly.
- Don’t rush the sauté: Let your veggies soften enough to enhance their sweetness.
- Add dairy alternatives: If you can include some dairy, topping with a bit of cheese before baking can add a creamy finish.
Best ways to enjoy it
This casserole is incredibly versatile! Serve it on its own for a satisfying breakfast, or pair it with slices of avocado for some healthy fats. It also goes well with fresh fruit for a sweet contrast. You could also offer salsa or hot sauce on the side for anyone wanting a bit of a kick.
Storage & reheating tips
Store any leftovers in an airtight container in the fridge for up to a week. To reheat, place slices in the microwave for about a minute or until steaming hot. You can also reheat them in the oven if you prefer a crispy texture, simply cover with foil and warm at 350 degrees.
Refrigerate leftovers within 2 hours; reheat until steaming hot.
How to fix common issues
- Dry Casserole: If your casserole comes out dry, it may have been overcooked. Monitor the baking process closely next time to find the optimal cooking time.
- Bland Flavor: Always taste and adjust seasonings. Sausage varieties differ greatly in flavor!
- Soggy Bottom: If the bottom is soggy, consider using less spinach or draining the water from frozen spinach thoroughly next time.
Recipe variations
Feel free to switch up the ingredients! You can incorporate mushrooms or experience different flavor profiles with different spices. Adding fresh herbs like basil or cilantro can elevate the dish even further. For a more hearty meal, consider adding some cooked quinoa or potatoes to the mixture.
Common questions
Can I freeze the casserole?
Yes! This casserole can be frozen unbaked or baked. If freezing unbaked, wrap it tightly in plastic wrap and then foil, and it should be good for a couple of months. If baked, let it fully cool before wrapping and storing.
What can I use instead of sausage?
Ground turkey, chicken, or even plant-based sausage alternatives work great in this recipe. Just make sure they are Whole30 approved if you’re following that plan.
How long will this casserole last in the fridge?
Properly stored in an airtight container, the casserole will last about 5-7 days in the refrigerator, allowing you to enjoy it throughout the week.
Can I add cheese to this dish?
You can add cheese if you’re not strictly following Whole30. Just sprinkle it on top before baking for a cheesy finish.
Is this dish suitable for meal prep?
Absolutely! It’s a perfect breakfast option to prepare ahead, and portion sizes are easy to manage. Just reheat each morning for a quick meal!
This sausage and egg Whole30 breakfast casserole is not just a meal; it’s a delightful beginning to your day filled with nourishment and flavor! Enjoy making this dish and savor the hearty breakfast it offers, day after day!
Sausage and Egg Whole30 Breakfast Casserole
Ingredients
Method
- Preheat the oven to 350 degrees F.
- Dice the green and red bell peppers along with the onion. Chop the spinach and set aside.
- In a medium bowl, crack 12 eggs and whisk them together well. If desired, add a few drops of hot sauce for extra flavor and mix until combined.
- In a large skillet over medium-high heat, add a drizzle of olive oil to coat the pan. Cook the turkey sausage until fully browned and cooked through. Drain the meat and set it aside.
- Using the same skillet, add the diced onions and peppers over medium heat. Cook until they start to soften, about 2 minutes. Then, incorporate the chopped spinach and cook for an additional minute before removing from heat.
- Return the cooked sausage to the skillet and add garlic powder, Mrs. Dash seasoning, salt, and pepper. Stir until everything is well combined.
- Pour the sausage and veggie mixture into a 9×13 glass baking dish sprayed with non-stick olive oil.
- Top evenly with the egg mixture and sprinkle a little onion and herb seasoning on top.
- Bake for 25-30 minutes or until a knife inserted in the center comes out clean.
- Let it cool for 5-10 minutes before slicing and serving. If desired, add salsa for extra flavor!