Bring oil to a simmer in a pan over medium-high heat, then add tomatoes, tossing and cooking until skin bursts. Once burst, remove from heat and hold for salad.
Next, bring 6 cups salted water to a boil, then add leaves and stir, cooking for 1-2 minutes. Once cooked, remove from water and allow to air cool.
In a food processor combine Craisins, vinegar, salt, and mustard, then puree. Slowly add oil. Once blended, taste and season, then remove.
To finish salad, mix all ingredients in large bowl, add ½ cup dressing and toss well to coat salad. Remove and serve.