Curried Tuna and Pecans in Pita Halves

Ingredients

• 2 6-oz. cans water-packed tuna
• 1/2 cup mayo
• 1/4 cup thinly sliced celery
• 2 Tbsp pickle relish
• 2 tsp curry powder
• 1/2 tsp sugar
• 1/4 cup pecan pieces, toast in broiler
• 2 whole-wheat pita breads, cut to make 4 halves
• 4 lettuce leaves