Preheat your oven to 400°F (200°C) and line a small baking sheet with parchment paper.
Place the cherry tomatoes on the baking sheet, drizzle with a tiny amount of olive oil and a pinch of sea salt, then roast for 12 minutes until blistered.
While the tomatoes roast, dice the chicken breast into bite-sized pieces and season with sea salt, black pepper, and dried oregano.
Heat the remaining olive oil in a large skillet over medium-high heat and add the chicken, sautéing for 5-7 minutes until golden and cooked through.
Lower the heat to medium and stir in the minced garlic and the drained butter beans, cooking for 2 minutes until the beans are warmed.
Remove the skillet from the heat and gently fold in the roasted tomatoes along with any juices from the baking sheet.
Add the lemon zest, lemon juice, and fresh parsley, tossing everything together until well combined.
Transfer to a bowl and serve immediately while warm.