Sausage and Egg Whole30 Breakfast Casserole Recipe

Introduction

This Sausage and Egg Whole30 Breakfast Casserole is a hearty and flavorful way to start your day. Packed with sausage, fresh veggies, and eggs, it’s perfect for meal prep or feeding a crowd. Plus, it’s Whole30-approved and easy to customize.

The image shows a rectangular baked dish cut into square pieces. The dish has a top layer with melted white cheese spread unevenly, revealing bits of colorful vegetables underneath. The vegetables include small red and orange pieces, dark green leafy parts, and some light yellow areas mixed throughout. The texture looks soft with a slightly golden crust around the edges. The dish is placed on a white marbled surface with a white cloth that has red and green stripes on the right side. A woman's hand is holding one piece from the top left corner. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

  • 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, plus extra to sprinkle on top
  • Salt and pepper, to taste
  • 12 large eggs
  • Hot sauce (optional, to taste)

Instructions

  1. Step 1: Preheat your oven to 350 degrees Fahrenheit.
  2. Step 2: Dice the peppers and onion, then chop the spinach. Set all aside.
  3. Step 3: In a medium bowl, crack the 12 eggs and whisk well. If you like, add a few drops of hot sauce and whisk to combine.
  4. Step 4: Heat a little olive oil in a large skillet over medium-high heat. Cook the sausage until fully cooked, then drain and set aside.
  5. Step 5: In the same skillet, cook the diced peppers and onion over medium heat until slightly softened, about 2 minutes. Add the chopped spinach and cook for an additional minute. Remove from heat.
  6. Step 6: Return the cooked sausage to the skillet with the veggies. Add garlic powder, Mrs. Dash seasoning, salt, and pepper. Stir well to combine.
  7. Step 7: Pour the sausage and vegetable mixture into a 9×13 glass baking dish lightly coated with olive oil.
  8. Step 8: Pour the whisked eggs evenly over the sausage and veggies. Sprinkle additional Mrs. Dash Onion & Herb Seasoning on top.
  9. Step 9: Bake for 25-30 minutes, or until a knife inserted in the center comes out clean.
  10. Step 10: Let the casserole cool for 5-10 minutes before slicing. Serve with salsa if desired and enjoy!

Tips & Variations

  • Use fresh spinach for a brighter flavor, or frozen spinach for convenience—just be sure to thaw and drain it well.
  • Swap bell peppers for other veggies like mushrooms or zucchini to suit your taste.
  • Add fresh herbs such as parsley or chives on top after baking for extra freshness.
  • For a spicier dish, increase the hot sauce or add red pepper flakes to the egg mixture.

Storage

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual servings in the microwave until warm. This casserole also freezes well—wrap tightly and freeze for up to 3 months. Thaw overnight in the fridge before reheating.

How to Serve

A clear glass baking dish contains a baked egg casserole cut into nine squares, with visible layers of melted white cheese on top, mixed with green leafy vegetables, red bell pepper pieces, and browned bits of cooked meat, all blending into a golden egg base. The dish sits on a white marbled surface next to a white cloth with red and green stripes. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I make this casserole ahead of time?

Yes, you can assemble the casserole the night before and keep it covered in the fridge. Bake fresh in the morning, adding a few extra minutes to the baking time if going in cold.

Can I use a different type of sausage?

Absolutely. Choose your preferred Whole30-approved sausage or any other favorite breakfast sausage. Just make sure it’s fully cooked before adding to the casserole.

Print
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Sausage and Egg Whole30 Breakfast Casserole Recipe


  • Author: Matteo
  • Total Time: 40 minutes
  • Yield: 12 servings 1x
  • Diet: Whole30

Description

This Sausage and Egg Whole30 Breakfast Casserole is a hearty, protein-packed morning meal perfect for meal prep or a family brunch. Combining savory Whole30-approved sausage with fresh vegetables and eggs, this easy-to-make casserole offers a flavorful and nutritious way to start your day, all while adhering to Whole30 dietary guidelines.


Ingredients

Scale

Protein and Eggs

  • 1 pound Whole30 approved breakfast sausage (or turkey sausage if not Whole30)
  • 12 large eggs

Vegetables

  • 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)

Seasonings and Oils

  • Olive oil for pan
  • 1/2 tsp garlic powder
  • 1 tsp salt-free Mrs. Dash Onion & Herb Seasoning + extra for sprinkling on casserole
  • Salt and pepper, to taste
  • Hot sauce (optional, to taste)

Instructions

  1. Preheat the oven: Preheat your oven to 350 degrees Fahrenheit to prepare for baking the casserole.
  2. Prepare the vegetables: Dice the green and red bell peppers and the onion. Chop the spinach if using fresh. Set all the vegetables aside.
  3. Whisk the eggs: Crack 12 large eggs into a medium bowl and whisk thoroughly until fully combined. Add a few drops of hot sauce if desired, and whisk again to incorporate.
  4. Cook the sausage: Heat a large skillet over medium-high heat and add a small amount of olive oil to coat the pan. Add the sausage and cook until fully browned and cooked through. Drain any excess grease and set the sausage aside.
  5. Sauté the vegetables: Using the same skillet, cook the diced peppers and onions over medium heat for about 2 minutes until slightly softened. Add the chopped spinach and cook for an additional minute. Remove the skillet from the heat.
  6. Combine sausage and veggies: Return the cooked sausage to the skillet with the vegetables. Add garlic powder, 1 teaspoon of Mrs. Dash Onion & Herb Seasoning, salt, and pepper. Stir everything together until well mixed.
  7. Transfer to baking dish: Pour the sausage and vegetable mixture into a 9×13 inch glass baking dish that has been lightly sprayed with non-stick olive oil.
  8. Add the egg mixture: Pour the whisked eggs evenly over the sausage and vegetable layer. Sprinkle additional Mrs. Dash Onion & Herb Seasoning on top to add flavor.
  9. Bake the casserole: Place the dish in the preheated oven and bake for 25-30 minutes, or until a knife inserted into the center comes out clean and the eggs are fully set.
  10. Cool and serve: Allow the casserole to cool for 5-10 minutes before slicing. Optionally, top each serving with salsa or your preferred condiments and enjoy your flavorful Whole30 breakfast casserole.

Notes

  • You can substitute the sausage with turkey sausage if you are not following Whole30 strictly.
  • Fresh spinach adds texture, but frozen spinach works fine if thawed and drained well.
  • Feel free to adjust the seasoning levels to your taste, especially with salt and hot sauce.
  • This casserole can be made ahead and refrigerated to reheat for quick breakfasts throughout the week.
  • Use a non-stick spray that is Whole30 compliant to avoid sticking and ease cleanup.
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Category: Breakfast Casserole
  • Method: Baking
  • Cuisine: American

Keywords: Whole30 breakfast, breakfast casserole, sausage and egg casserole, healthy breakfast, meal prep breakfast, protein-packed breakfast, gluten free breakfast

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