Preparation Combine vinegar, shallot, Dijon mustard, basil, tarragon, and thyme in small bowl. Gradually whisk in oil. Season dressing with salt and pepper. Cook green beans and asparagus in medium pot of boiling salted water until crisp-tender, about 4 minutes; drain. Cut vegetables into 1/2-inch pieces; place in large bowl. Add lettuces, tomatoes and sliced basil leaves. Toss salad with enough dressing to coat.
Preparation Combine vinegar, shallot, Dijon mustard, basil, tarragon, and thyme in small bowl. Gradually whisk in oil. Season dressing with salt and pepper. Cook green beans and asparagus in medium pot of boiling salted water until crisp-tender, about 4 minutes; drain. Cut vegetables into 1/2-inch pieces; place in large bowl. Add lettuces, tomatoes and sliced basil leaves. Toss salad with enough dressing to coat.