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0 from 12 votes

Creamy Spinach Gratin

A versatile and tasty recipe that’s quick to prepare and easy to enjoy.

Prep Time
10 mins
Cook Time
10 mins
Total Time
44 mins
Servings: 8 -10 servings as a side dish
Calories: 358 kcal
Course: Side Dish
Cuisine: American

Ingredients

  • 4 4 tablespoons butter
  • 4 4 cups minced yellow onions about 2 large onions
  • 2 2 cloves garlic finely minced
  • ¼ ¼ cup flour
  • ¼ ¼ teaspoon grated nutmeg
  • 1 1 cup heavy cream
  • 2 2 cups milk
  • 3 3 pounds frozen chopped spinach defrosted (5 (10-ounce) packages)
  • 1 1 cup freshly grated Parmesan or Parmigiano Reggiano cheese
  • 1 1 tablespoon kosher salt or 1/2 tablespoon table salt
  • ½ ½ teaspoon freshly ground black pepper
  • ½ ½ cup grated gruyere Swiss or Parmesan cheese

Instructions

    Cup of Yum
  1. Preheat the oven to 425 degrees F.
  2. Melt the butter in a large skillet (12-inch) over medium heat. Add the onions and saute until translucent, about 10 minutes. Add the garlic and sauté until fragrant, about 2 more minutes. Add the flour and nutmeg and cook, stirring, for 2 more minutes. Add the cream and milk and cook, stirring often and quickly, until thickened. Squeeze as much liquid as possible from the spinach and add the spinach to the sauce. Add 1/2 cup of the Parmesan cheese and mix well. Season, to taste, with the salt and pepper.
  3. Transfer the spinach to a 9X13-inch or similar sized baking dish and sprinkle the remaining 1/2 cup Parmesan and the Gruyere (or Swiss or Parmesan, if using) on top. Bake for 20 minutes until hot and bubbly. Serve hot.

Notes

  • Liquid: it is really important to squeeze as much liquid from the spinach as possible or the gratin will be watery. The best method I’ve found is to put the spinach in a large dishtowel, roll up the towel, and twist the ends to wring out the liquid. Use those muscles and get rid of all the water!

Nutrition Information

Serving 1 Serving Calories 358kcal (18%) Carbohydrates 22g (7%) Protein 17g (34%) Fat 24g (37%) Saturated Fat 15g (75%) Cholesterol 76mg (25%) Sodium 1317mg (55%) Fiber 6g (24%) Sugar 8g (16%)

Nutrition Facts

Serving: 8-10 servings as a side dish

Amount Per Serving

Calories 358

% Daily Value*

Serving 1 Serving
Calories 358kcal 18%
Carbohydrates 22g 7%
Protein 17g 34%
Fat 24g 37%
Saturated Fat 15g 75%
Cholesterol 76mg 25%
Sodium 1317mg 55%
Fiber 6g 24%
Sugar 8g 16%

* Percent Daily Values are based on a 2,000 calorie diet.