Storage: Store leftover vinaigrette in an airtight container in the refrigerator for up to 3 days. The vegetables may release some liquid, so stir before serving.
Substitutions: If serrano chiles are too spicy, substitute with jalapeños or omit the seeds for milder heat. Mango can be replaced with peach or pineapple for a different tropical twist.
Variations: Add diced avocado to the vinaigrette for extra creaminess. Serve with steamed rice or grilled corn on the cob.