Mediterranean Tuna Salad with Dijon dressing

Name: Mediterranean Tuna Salad with Dijon dressing
Prep time: 15 min
Total time: 15 min
Cuisine: Mediterranean
Ingredients: 2 1/2 tsp good quality Dijon mustard; Zest of 1 lime; 1 1/2 limes (juice of); 1/3 cup Early Harvest extra virgin olive oil; 1/2 tsp sumac; Pinch of salt and pepper; 1/2 tsp crushed red pepper flakes, (optional); 3 cans tuna, (5 ounces each (use quality tuna of your choice)); 2 1/2 celery stalks, (chopped); 1/2 English cucumber, (chopped); 4-5 radishes, (stems removed, chopped); 3 green onions, (both white and green parts, chopped); 1/2 medium red onion, (finely chopped); 1/2 cup cup pitted Kalamata olives, (halved); 1 bunch parsley, (stems removed, chopped (about 1 cup chopped fresh parsley)); 10-15 fresh mint leaves, (stems removed, finely chopped (about 1/2 cup chopped fresh mint)); Six slices heirloom tomatoes for serving, (optional); Homemade Pita chips or pita pockets for serving, (optional )