To make dressing, add cilantro, lime zest, lime juice, olive oil, cumin, cayenne, salt and pepper to a jar and seal lid. Shake well, until emulsified.
Combine tomatoes, beans, black-eyed peas, corn, peppers, onion, and jalapeƱos in a bowl. Add dressing, as needed, and mix with ingredients.
Top with slices of avocado, if desired. You can serve the Cowboy Caviar as is or with tortilla chips! Enjoy!