DRESSING: In a small bowl, whisk together olive oil, red wine vinegar, salt, pepper, cumin, and minced garlic until well combined.
VEGGIES: In a large bowl, combine cilantro, onions, tomatoes, black-eyed peas, and shoepeg corn. Add dressing, toss to coat. Chill until ready to serve.
When ready to serve, add cubed avocado, toss to combine Serve with warm tortilla chips or Fritos Scoops.