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Home » recipes

Updated: Jan 6, 2026 · Published: Jul 30, 2022 by Dan Harper · This post may contain affiliate links · Leave a Comment

High Protein Spinach Casserole (with Cottage Cheese)

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Get ready for an incredibly easy, quick, and delicious Spinach Casserole that's become a beloved staple in my home! This versatile dish is perfect for a satisfying lunch, a delightful brunch item, or a comforting side dish. It's packed with flavor, thanks to fresh or frozen spinach and your choice of melted cheeses, making it a truly satisfying, yet not overly filling, meal. You can even customize it with your favorite vegetables or meats, and it's perfect for your slow cooker!

Spinach Casserole Cleveland Cooking

Why You Will Love This High Protein Casserole

  • Secretly Healthy: The cottage cheese adds a massive protein boost (24g per serving!) and creates a rich, creamy texture without needing heavy cream.
  • Meal Prep Friendly: This reheats perfectly, making it an ideal high-protein breakfast or lunch for the entire week.
  • Versatile: Serve it as a cheesy side dish for dinner, or add sausage or chicken to turn it into a complete "one-pan" meal.
  • Sneaky Veggies: It’s loaded with 20 ounces of spinach, but the melted cheese makes it taste like pure comfort food.

What You Will Need:

  • 2-10 oz bags of spinach
  • 2 cups of cottage cheese
  • 3 tablespoons of butter
  • 2 cups of shredded cheese of your choice
  • 3 eggs
  • ¼ cup of flour (substitute ¼ cup of almond flour if desired)
  • ½ teaspoon of sea salt

Spinach in the Spinach Casserole Recipe

I made the recipe with two 10 ounce bags of fresh spinach that I wilted in a pan with a little bit of olive oil. Just add two tablespoons of olive oil to a pan over medium heat and add the spinach. Place the lid on and stir occasionally. The spinach will start to wilt almost right away. Strain the spinach well after it is all wilted. The other option is to purchase two 10 ounce packages of frozen spinach and thaw and drain them. It is very important to try and get as much moisture as possible out of the frozen spinach.

The Cheeses

The two types of cheese in the spinach casserole recipe are cottage cheese and two cups of shredded cheese of your choice. First the cottage cheese. If you do not have cottage cheese on hand do not worry! I have used ricotta instead! The other cheese is two cups of your choice. I have used mostly good melting cheeses. Cheeses such as monterey jack, mozzarella, provolone, swiss, etc. The choice is up to you. Make it your own!

Variations on the Spinach Casserole Recipe

I love adding quartered baby bella mushrooms to this dish. They add a nice texture to the dish! I have also added chicken, sausage, or shrimp on occasion to mix it up a bit. You can take this spinach casserole recipe in many different directions! This recipe goes great with my spiced baked ham recipe!

Please visit my sides and salads page for more ideas! Or try my spinach and artichoke pasta recipe for dinner!

FAQ's

What's the best way to prepare the spinach for this casserole?

You have two great options: use two 10-ounce bags of fresh spinach, wilting them in a pan with a little olive oil until tender, then straining well. Alternatively, you can use two 10-ounce packages of frozen spinach; just be sure to thaw and drain them thoroughly, pressing out as much moisture as possible.

Can I substitute ricotta cheese for cottage cheese?

Yes, absolutely! While the recipe calls for cottage cheese, ricotta cheese works as an excellent substitute if you don't have cottage cheese on hand. The texture and flavor will still be fantastic.

What types of shredded cheese work best in this spinach casserole?

For the best melting and flavor, choose good melting cheeses like Monterey Jack, mozzarella, provolone, or Swiss. The final choice is up to your preference to make it your own!

Can I add other vegetables or meats to this spinach casserole?

Yes, this is a very versatile dish! Quartered baby bella mushrooms add a nice texture, and you can also incorporate cooked chicken, sausage, or shrimp to transform it into a more complete meal.

Looking for more cozy inspiration? Browse my full collection of Comfort Food Recipes to find your next family favorite.

Recipe

spinach casserole fresh from the oven by cleveland cooking

High Protein Spinach Casserole (with Cottage Cheese)

Author: Dan Harper
308kcal
5 from 1 vote
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Prep 20 minutes mins
Cook 35 minutes mins
Total 55 minutes mins
This spinach casserole recipe is easy, quick, affordable and couldn't be more delicious! Makes a great side dish for any dinner!
Servings 6 people
Course Side Dish
Cuisine American

Ingredients

  • 2 - 10 ounce bags of fresh spinach wilted in a skillet with two tablespoons of olive oil
  • 2 cups of creamy cottage cheese
  • 3 tablespoons of butter cut into ½ inch pieces
  • 2 cups of shredded cheese of your choice
  • 3 eggs beaten
  • ¼ cup of flour (substitute ¼ cup of almond flour if desired)
  • ½ teaspoon of sea salt

Method

  1. If using fresh spinach: Heat olive oil in a skillet over medium heat. Add spinach and cook until wilted (about 3-5 minutes). Important: Place the wilted spinach in a colander and press down hard with a spoon to squeeze out excess liquid.
  2. In a large bowl, whisk the beaten eggs, melted butter, flour, and sea salt until smooth. Stir in the cottage cheese.
  3. Add the drained spinach and 1.5 cups of the shredded cheese (reserve ½ cup for the topping) to the bowl. Mix until well combined.
  4. Pour the mixture into a greased 9x13 baking dish. Sprinkle the remaining ½ cup of shredded cheese on top. Bake at 350°F (175°C) for 35 minutes, or until the edges are bubbly and golden brown. Let sit for 5 minutes before serving to set.

Nutrition

Serving6 servingsCalories308kcalCarbohydrates9gProtein24gFat20gSaturated Fat12gPolyunsaturated Fat1gMonounsaturated Fat6gTrans Fat0.2gCholesterol133mgSodium847mgPotassium449mgFiber1gSugar3gVitamin A5931IUVitamin C16mgCalcium398mgIron3mg

Video

Notes

I have used monterey jack, cheddar, and swiss in this dish. I usually mix the three up to give the dish a nice flavor.
I have also added diced chicken or sausage to this dish. Obviously that would make it a non-vegetarian dish.
Substitute ¼ cup of almond flour if desired.
 

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