Stuffed Chiles

1. Peeli and seed chiles.
2. Combine corn, onions, minced serrano chiles, mayonnaise, sour cream, mustard, lemon juice, lemon zest, cilantro, and salt-mix well.
3. Spoon into peeled chiles with a teaspoon.
4. Place seam side down onto a platter.
5. Cover and chill until firm.
6. Remove to a serving platter.
7. Garnishi with minced scallions.
8. Serve at room temperature.