Quick, creamy, and packed with fresh flavor, these Tuna Salad Stuffed Pitas make an easy lunch or light dinner that’s ready in just minutes. Ingredients 2 (5-ounce) cans tuna in water, drained ¼ cup mayonnaise 1 tbsp plain Greek yogurt 1 tsp Dijon mustard ¼ cup finely diced red onion ¼ cup finely diced celery…