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Creamy Spinach Gratin | Can't Stay Out of the Kitchen | Fantastic & mouthwatering #Spinach #casserole with #Parmesan & #GruyereCheese. My favorite #SpinachSideDish for company or #holiday meals. #GlutenFree #CreamySpinachGratin

Creamy Spinach Gratin

Creamy Spinach Gratin rocks! This spectacular spinach casserole has a rich, gooey, creamy sauce using gruyere and parmesan cheeses. Every bite explodes with flavor. This kid-friendly recipe is gluten free and perfect for holiday dinners like Thanksgiving, Christmas, Easter or Mother's Day.
Prep Time 30 mins
Cook Time 30 mins
Total Time 1 hr
Course Side Dish, Vegetable/Casserole
Cuisine American
Servings 12
Calories 197 kcal


  • 2 cups onion diced, 1 really large onion
  • 1/2 stick unsalted butter (1/4 cup)
  • 1 leek green top removed, diced or sliced
  • 2 cloves garlic minced
  • 1/4 cup gluten free flour
  • 1/8 tsp. nutmeg
  • 1/2 cup heavy whipping cream
  • 1 cup half-and-half
  • 24 oz. frozen chopped spinach thawed with all moisture pressed out
  • 3/4 cup Parmesan cheese shredded
  • 1/2 cup Gruyere cheese shredded
  • 1 1/2 tsp. sea salt or kosher salt
  • 1/4 tsp. black pepper


  • Melt butter in a large skillet over medium heat.
  • Add onions and leeks and sauté about 5 minutes until tender.
  • Add garlic and cook about 1 minutes longer—until fragrant, but don’t scorch the garlic or it will become bitter.
  • Add the flour and nutmeg.
  • Stir and cook an additional minute.
  • Add the cream and half-and-half and stir constantly until mixture is thickened.
  • Add salt and pepper.
  • Stir in 1/3 cup freshly grated Parmesan cheese.
  • Squeeze out as much water from spinach as possible and add to cream mixture. (I used a potato masher to press out the water).
  • Stir pressed spinach into cheese mixture.
  • Prepare a 9x13” glass baking dish by spraying with olive oil cooking spray.
  • Add spinach mixture.
  • Sprinkle remaining Parmesan cheese and 1/2 cup freshly grated Gruyere cheese.
  • Cover with foil. Bake at 350° about 30 minutes or until hot and bubbly.


Recipe adapted from Mel's Kitchen Cafe.
© Can’t Stay Out of the Kitchen


Calories: 197kcalCarbohydrates: 10gProtein: 7gFat: 15gSaturated Fat: 9gPolyunsaturated Fat: 0.1gMonounsaturated Fat: 0.01gCholesterol: 41mgSodium: 427mgPotassium: 265mgFiber: 3gSugar: 3gVitamin A: 7250IUVitamin C: 23.1mgCalcium: 280mgIron: 1.4mg
Keyword casserole, cheese, gluten free, side dish, spinach, vegetable
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