Let's cook.
In a medium bowl, gently flake the drained tuna with a fork.
Add the rinsed and drained cannellini beans, halved cherry tomatoes, finely diced red onion, and chopped fresh parsley to the bowl with the tuna.
In a small separate bowl, whisk together the extra virgin olive oil, lemon juice, dried oregano, salt, and black pepper to create the dressing.
Pour the dressing over the tuna and vegetable mixture.
Gently toss all ingredients until well combined and coated with the dressing. Serve immediately or chill for later.
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