Tuna for Poke - Mayonnaise Version

Cut the tuna into bite-size pieces.

Finely chop the onion and cucumber.

Soak the onion, cucumber, and corn in cold water to remove the sharp flavors.

In a bowl, mix tuna, onion, cucumber, corn, mayonnaise, a pinch of salt and pepper, and lemon juice thoroughly.

Place rice in a bowl and top with the tuna mayonnaise mixture.

Garnish with avocado, seaweed flakes, and toasted sesame seeds.