In a small bowl, combine all dressing ingredients and hand blend till smooth.
Rinse and pat the meat dry. Place in a sealable plastic bag or small bowl and add 2.
tablespoon of dressing to marinate the meat. Marinate meat in refrigerator at least 2 hours or overnight.
Reserve the rest of the mixture refrigerated, to dress the salad.
Preheat grill or grill pan with cooking spray and neutral oil. Grill steak until medium-rare, about 1.5 minutes per side, depending on desired doneness.
Let rest until room temperature then slice thinly against the grain.
Combine lettuce, sliced shallot, cilantro, basil, mint and beef in a salad bowl. Add the reserved dressing and toss to coat.
Serve on lettuce leaves, traditionally with room temp jasmine rice.
