Creamy Cheesy Spinach Dip

1 . Stage

Preheat the oven to 425 degrees F (220 degrees C). Grease a 1 1/2-quart shallow baking dish with 1 teaspoon olive oil.

2 . Stage

Heat 2 teaspoons olive oil in a large pot over medium heat. Cook and stir onion and garlic in hot oil until lightly browned, 4 to 7 minutes. Dotdash Meredith Food Studios

3 . Stage

Add spinach and simmer until spinach is hot, about 5 minutes. Drain any liquid from the mixture and transfer to a bowl. Dotdash Meredith Food Studios

4 . Stage

Pour milk into the pot and return it to medium heat. Melt cream cheese into milk; cook and stir together, about 3 minutes. Return spinach mixture to pot with 1/2 cup mozzarella cheese and Cheddar cheese; stir to combine. Season the mixture with Worcestershire sauce, salt, and pepper. Dotdash Meredith Food Studios Dotdash Meredith Food Studios

5 . Stage

Pour the mixture into the prepared baking dish and top with remaining 1/2 cup mozzarella cheese. Dotdash Meredith Food Studios

6 . Stage

Bake in the preheated oven until bubbly and golden brown on top, 20 to 25 minutes.