Sausage and Egg Whole30 Breakfast Casserole

When the aroma of a savory breakfast wafts through the air, it promises a delicious start to the day. The Sausage and Egg Whole30 Breakfast Casserole is a hearty and flavorful dish that takes just about 40 minutes to prepare and bake. It’s packed with protein and veggies, making it perfect for a nutritious breakfast that keeps you energized throughout the morning.

This recipe is ideal for anyone following the Whole30 program or anyone who enjoys a wholesome breakfast packed with flavor. Prepare it for busy weekday mornings or leisurely weekend brunches. It stores well in the fridge, making it an excellent make-ahead option.

Why You’ll Love This Recipe

• It’s a one-dish meal that minimizes cleanup.
• The combination of sausage, eggs, and veggies creates a satisfying texture.
• It’s fully customizable with your favorite veggies or seasoning.
• Each slice reheat beautifully for busy mornings.

What You’ll Need

Gather the following ingredients to make this delicious breakfast casserole:

For the Casserole

• 1 pound Whole30 approved breakfast sausage or this 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)

Use turkey sausage for a lighter option.

Substitutions & Swaps

• Use chicken sausage for a different flavor.
• Swap fresh spinach with kale or Swiss chard.
• Replace Mrs. Dash with your favorite herb blend.
• Omit hot sauce for a milder dish.

How to Make It

Follow these simple steps to create your casserole.

Preheat

Preheat your oven to 350 degrees.

Prepare Veggies

Dice up the peppers and onion, and chop your spinach. Set aside.

Whisk Eggs

In a medium bowl, crack the 12 eggs and whisk well. If desired, add a few drops of hot sauce and whisk until combined.

Cook Sausage

In a large skillet over medium-high heat, add a little olive oil to coat and cook the turkey sausage until fully cooked. Drain the meat and set aside.

Sauté Vegetables

In the same skillet, cook the diced peppers and onions on medium heat until slightly softened (about 2 minutes). Add in chopped spinach and cook for 1 more minute. Remove from heat.

Combine Ingredients

Add the turkey sausage back to the pan and include all your seasonings. Stir until well combined.

Assemble Casserole

Pour the combined sausage and veggie ingredients into a glass 9×13 baking dish that has been sprayed with non-stick olive oil.

Add Egg Mixture

Top the casserole with the egg mixture and sprinkle evenly with the onion and herb seasoning.

Bake

Bake for 25-30 minutes or until a knife comes out of the center clean.

Cool and Serve

Let cool for 5-10 minutes before slicing and serving. If desired, top with salsa and enjoy your delicious Whole30 breakfast casserole!

How to Store It

Fridge: 4-5 days in an airtight container.
Freezer: Yes, for up to 2 months.
Reheat: Microwave for 1-2 minutes or until heated through.

Tips for Best Results

• Use a combination of fresh herbs for added flavor.
• Allow the casserole to cool completely before storing.
• Consider adding slices of avocado or fresh herbs on top when serving.
• For a spicier kick, increase the amount of hot sauce in the egg mixture.

Serving Suggestions

• Serve with fresh fruit for a balanced meal.
• Pair with avocado toast for an extra dose of healthy fats.
• Enjoy with a side of salsa or guacamole for added flavor.