Caramelized Onion and Mushroom Tuna Tart | StarKist®

Ingredients

• 1 (4.5 oz.) Can - StarKist Selects® Solid Yellowfin Tuna in Water
• 1 pie crust
• 1 Tbsp. olive oil
• 1 sweet onion, thinly sliced
• 8 oz. sliced baby bella mushrooms
• 1 tsp. fresh thyme, chopped
• 1⁄8 tsp. ground black pepper
• 1 ⁄ 2 cup finely shredded Swiss cheese
• 2 Tbsp. pine nuts, toasted