Preheat oven to 425°.
To prepare pork, sprinkle tenderloin with 1/4 teaspoon salt and 1/4 teaspoon black pepper. Place pork in a foil-lined, shallow roasting pan coated with cooking spray. Bake at 425° for 20 minutes or until thermometer registers 160° (slightly pink). Cut pork diagonally across grain into thin slices; keep warm.
To prepare dressing, combine jalapenò and next 6 ingredients (jalapenò through black pepper); stir well with a whisk.
Combine pork, dressing, and remaining ingredients; toss gently to coat.