Ingredients

  • 2 teaspoons olive oil, plus more for baking dish
  • 1 onion, finely chopped
  • 2 garlic cloves, minced
  • 2 pounds spinach, washed well and coarsely chopped
  • 1/2 cup milk
  • 6 ounces cream cheese, cut into pieces, softened
  • 3 dashes Worcestershire sauce
  • 3 dashes hot-pepper sauce, such as Tabasco
  • 3/4 cup shredded mozzarella cheese (3 ounces)
  • Coarse salt and freshly ground pepper

Method

  • Preheat oven to 425F.
  • Heat oil in a Dutch oven (or large pot) over medium.
  • Add onion and garlic; cook, stirring occasionally, until lightly browned, 5 to 8 minutes.
  • Add spinach in two additions, letting the first batch wilt before adding the next; cook until completely wilted, tossing frequently, 5 to 8 minutes.
  • Transfer mixture to a colander; drain, pressing to release all excess liquid.
  • In the same pot, bring milk just to a simmer.
  • Add cream cheese and cook, whisking, until melted, about 3 minutes.
  • Add spinach, Worcestershire sauce, hot-pepper sauce, and 1/4 cup mozzarella; stir to combine.
  • Season with salt and pepper.
  • Transfer mixture to a lightly oiled 1 1/4-quart shallow baking dish; sprinkle evenly with remaining 1/2 cup mozzarella.
  • Bake until bubbly and cheese is golden brown, 20 to 25 minutes.
  • Serve hot.
  • You can prepare the recipe through step 2 a day or two ahead; let spinach mixture cool, then refrigerate it in an airtight container before proceeding.