Wash and chop the romaine lettuce into bite-sized pieces.

Rinse the canned black beans and sweet corn under cold water.

Slice the cherry tomatoes in half and thinly slice the red onion.

In a large mixing bowl, combine the chopped romaine lettuce, rinsed black beans, corn, halved cherry tomatoes, and sliced red onion.

In a small bowl or jar, whisk together the olive oil, fresh lime juice, chili powder, salt, and pepper.

Drizzle the dressing over the salad mixture and toss until evenly coated.