Get ready to sing a joyful tuna. If you're watching your waistline, you mayo love this heart-healthy version that relies on Dijon mustard instead of full-fat mayonnaise. One bite and you'll realize there's nothing fishy about this refreshing salad.
1 pkg. (10 oz.) ready-to-use chopped romaine lettuce
Place lettuce, tuna, green beans and tomatoes in large salad bowl; whisk the oil, vinegar, mustard and pepper in a small bowl to blend. Pour dressing over salad and toss well. Mound 4 cups of salad on 4 large plates to serve.
Ready in 25 min