Cheesy Spinach Squares

Oven Baked Spinach Frittata

Oven baked spinach frittata recipe

My savory spinach squares are easy to make and are the perfect breakfast and brunch recipe!

I really hope you’ll give this recipe a try, and when you make it, be sure to let me know in the comment section below, as I’d absolutely love to hear what you think!! Also be sure take a photo of your creation, and post it on Instagram and tag me @cookingwithchika or #cookingwithchika as I love seeing your creations and photos!  Also be sure to share this recipe across all your social media platforms!

Oven Baked Spinach Frittata

Cheesy Spinach Squares

Cooking with Chika


  • 1 10 oz package frozen spinach thawed and drained
  • 1 cup all purpose flour
  • 1/2 teaspoon salt
  • 1 teaspoon black pepper
  • 1 teaspoon baking powder
  • 1 cup milk
  • 1/4 cup butter melted (optional)
  • 2 eggs
  • 1 medium onion diced
  • 2 cups shredded marble cheese – can use swiss cheddar, or mozzarella


  • Preheat oven to 375. Butter an 8 x 11 inch baking dish.
  • Place flour, salt, pepper and baking powder into a bowl, and mix to combine. Stir in eggs, butter, milk.
  • Add spinach, cheese, and diced onion. Stir to combine.
  • Pour mixture into prepared baking dish and bake for 30-35 minutes or until a toothpick inserted into the centre comes out clean and the top is golden brown.
  • Removed from stove and allow to cool for at least 30 minutes. Cut into squares and serve!

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