Spinach and Mushroom Egg Casserole
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This savory baked spinach and mushroom breakfast casserole recipe with eggs and sausage is a delicious alternative to a sweet breakfast option.
Savory and oh-so-good, the cream of soup, spinach, eggs, sliced mushrooms and lots of cheese make this side dish hearty and filling enough for dinner as well.
If you love veggies but are tired of the same old hashbrown filled breakfast casserole recipes, you are in for a treat. One of my readers said “THIS WAS SO GOOD” and I hope you feel the same way!
- Before you get started on this casserole, please know there is some pre-prep work – cook and drain pork sausage first and then the recipe is ready to be assembled.
- Additionally, this casserole takes about 55-60 minutes to cook, therefore cooking times need to be planned.
Ingredients
- 10 ounces seasoned croutons
- 1lb ground pork sausage, cooked and crumbled
- 6 large eggs
- 2-1/4 cups milk
- 10.5 oz. cream of mushroom soup
- 10 oz. frozen spinach, thawed but not drained
- 8 oz. sliced fresh mushrooms
- 2 cups shredded cheese – Monterey jack or Cheddar Jack
- salt and black pepper
As a side note, you may notice two kinds of images in this recipe (one clear casserole dish and one blue one). This is because we made it two separate times and updated the images to best show you the steps.
How to make Spinach Mushroom Egg Casserole
Preheat the oven to 325 degrees. Grease a 9×13 baking dish with nonstick cooking spray. Spread croutons into the bottom of the pan. Sprinkle cooked and crumbled sausage on top of croutons.
In a large bowl, add eggs, milk and cream of mushroom soup and whisk eggs well. Fold in thawed but not drained spinach and sliced mushrooms. Mix all ingredients together well.
Add shredded cheese and mix again. Pour spinach and egg mixture on top of croutons and sausage in the baking dish.
Bake spinach casserole at 325 for 50-55 minutes (see note about timing for overnight casserole). Remove dish from oven.
Let casserole stand for 5 minutes before slicing and serving. Serves approximately 12 slices. If you make this recipe, I would love your rating and comment feedback.
Nope! Do not drain thawed spinach, or squeeze any water out of it. Some recipes (like crockpot spinach artichoke dip) require that but this breakfast bake does not.
More Breakfast Casseroles you’ll love!
Spinach and Mushroom Casserole
Ingredients
- 10 ounces seasoned croutons
- 1 lb ground pork sausage pre-cooked and crumbled
- 6 eggs
- 2-1/4 cups milk
- 10.5 oz. Campbells cream of mushroom soup
- 10 oz. frozen spinach thawed
- 8 oz. sliced fresh mushrooms
- 2 cups shredded Monterey jack
- salt and pepper to taste
Instructions
- Preheat the oven at 325 degrees. Grease a 9×13 baking pan with nonstick cooking spray.
- In a skillet, cook ground pork sausage and drain of excess grease.1 lb ground pork sausage
- Spread croutons into the bottom of the pan. Sprinkle cooked sausage on top.10 ounces seasoned croutons
- In a mixing bowl, add eggs, milk, and cream of mushroom soup and whisk well.6 eggs, 2-1/4 cups milk, 10.5 oz. Campbells cream of mushroom soup
- Fold in thawed (but not drained) spinach and sliced mushrooms into the egg mixture. Mix everything together. Now add shredded cheddar cheese and mix again. Salt and pepper to taste.10 oz. frozen spinach, 8 oz. sliced fresh mushrooms
- Pour cheesy spinach mixture on top of croutons and sausage in the baking dish.
- Bake casserole in the oven at 325 degrees for 50-55 minutes. As a note, because this recipe has cheese, its much harder to check for doneness in the middle as the cheese will show on the knife. Once done cooking, let stand for 5 minutes before slicing and serving (this process is necessary to avoid the casserole breaking apart). Enjoy!
Video
Notes
- Note that this egg casserole has cheese in it so you cannot use a knife test to test for doneness.
Nutrition
Nutritional Disclaimer: The nutritional data provided here is auto-calculated and intended for your convenience only. As it’s generated via automation, its accuracy may be compromised. For precise nutritional insight, please compute the values utilizing the actual ingredients in your recipe through your chosen nutrition calculator or application.
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