In a large bowl, combine the black beans, sweet corn, cherry tomatoes, red onion, jalapeño, avocado, and cilantro.
Make Dressing
In a small bowl, whisk together the olive oil, lime juice, cumin, salt, and black pepper until well combined.
Finish & Chill
Pour the dressing over the bean mixture and toss gently to coat.
Serve immediately or chill in the refrigerator for at least 30 minutes before serving.
Notes
For a spicier kick, leave the jalapeño seeds in or add a pinch of cayenne.Leftovers keep well in an airtight container for up to 3 days in the refrigerator.