Combine all ingredients. Allow to stand for 1/2 hour. Taste for salt and pepper.
1.5 cups corn kernels, 1.5 cups cooked black beans, 1 cup diced tomatoes, 0.5 cup yellow or white onion, 1 cup cilantro leaves, 1 to 2 jalapeno peppers, 2 tbsp lime juice, 2 tbsp olive oil, 1 tsp kosher salt, pepper