Preheat the oven to 200C/180C fan/Gas 6. Mix 1 tbsp olive oil with the oregano and rub over the chicken breasts. Place on a baking tray and transfer to the oven to bake for 15-20 minutes or until the chicken is cooked through, with no pink showing.
Meanwhile drain and rinse the butter beans. Place in a medium bowl and toss with the red onion, curly parsley and remaining olive oil. Season well and serve with the oregano chicken.
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