Spanakopita Recipe (Greek Spinach Pie)

Ingredients

• tablespoons extra-virgin olive oil
• large sweet onion
• large cloves garlic
• ounces frozen spinach )
• bunch parsley
• bunch scallion
• tablespoons fresh lemon juice
• tablespoons minced fresh dill
• ounces feta cheese
• large eggs
• teaspoon black pepper
• teaspoon salt
• teaspoon crushed red pepper flakes
• sheets phyllo dough
• salted butter