Step 1 Preheat oven to 180°C. Line a baking tray with baking paper. Arrange tomato, cut-side up, on prepared tray. Sprinkle with chilli flakes and spray with oil. Roast for 10-12 minutes or until tender.
Step 2 Meanwhile, boil, steam or microwave potatoes and broccolini until tender.
Step 3 Preheat a chargrill over high heat. Spray steaks with oil and grill for 2-3 minutes each side (for medium) or until cooked to your liking. Transfer to a plate and cover loosely with foil. Set aside to rest for 2-3 minutes.
Step 4 Place roasted tomato, olives, parsley and balsamic vinegar in a medium bowl, season with freshly ground black pepper and gently stir to combine.
Step 5 Top each steak with tomato relish and serve with cooked potatoes and broccolini.