Spinach Dip Christmas Tree

Ingredients (10)

• 1 tablespoon olive oil
• 1 onion, diced
• 2 cloves garlic, finely minced
• 12 ounces frozen spinach, chopped, thawed, and squeezed dry
• 4 ounces cream cheese, at room temperature
• 1/4 cup grated Parmesan cheese
• 1/2 teaspoon salt
• 1/4 teaspoon freshly ground black pepper
• 1 cup shredded mozzarella cheese
• 2 sheets ready-to-bake frozen puff pastry, thawed