1. Place potatoes and 1/4 cup water in shallow microwavable dish. Cover and microwave on HIGH (100%) 8 minutes or until potatoes are crisp-tender, turning once. Drain.
2. Combine mustard, dill, oil, lemon juice, lemon peel and pepper in small bowl. Brush mixture on potatoes and asparagus. Place vegetables in grilling basket. Grill over medium-high heat 8 minutes
or until potatoes and asparagus are fork-tender, turning and basting often with mustard mixture.