1. Stir together first 8 ingredients in a small bowl until well blended. Cover and chill 4 to 24 hours.
2. Meanwhile, snap off and discard tough ends of asparagus. Cut asparagus into 6-inch pieces, reserving any remaining end portions for another use. Cook asparagus in boiling water to cover in a large saucepan 1 to 2 minutes or until crisp-tender; drain. Plunge into ice water to stop the cooking process; drain. Repeat procedure with haricots verts. Place vegetables in zip-top plastic bags; seal and chill until ready to serve. Serve mayonnaise mixture with chilled vegetables.