Cilantro, Black Bean, and Corn Salsa

•      1 (15 ounce) can yellow corn, drained
•      1 (15 ounce) can white corn, drained
•      2 (15 ounce) cans black beans, drained and rinsed
•      1 (14.5 ounce) can Italian-style diced tomatoes, drained
•      1 bunch finely chopped cilantro
•      5 green onions, finely sliced
•      1 small red onion, finely chopped
•      1 red bell pepper, seeded and chopped
•      1 tablespoon minced garlic
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•    1/4 cup lime juice
•    1 avocado - peeled, pitted, and diced
•     2 tablespoons olive oil, or to taste

Stir the yellow and white corn, black beans, tomatoes, cilantro, green onion, red onion, bell pepper, and garlic in a large bowl. Gently mix in the lime juice and avocado. Drizzle with olive oil to serve.