Tuna Spanakopita Pie | Genova Seafood

Ingredients

• 1 tbsp. unsalted butter, plus 3 tbsp. melted butter
• 1/2 medium yellow onion, finely chopped
• 30 oz. frozen chopped spinach, thawed and squeezed dry
• 3/4 c. crumbled feta cheese, preferably sheep feta
• 1 tbsp. chopped fresh dill sprigs
• 5 oz. can Genova Yellowfin Tuna in Olive Oil , drained
• 3 large eggs
• Kosher salt
• Freshly ground black pepper
• 6 (13-by-18 inch) sheets frozen phyllo dough, thawed