This stunning traybake delivers on all fronts: the artichokes, olives and rosemary and garlic roasted lamb work beautifully together, while the cannellini beans soak up all the wonderful flavours from the tin at the end. Perfect for easy entertaining. If you’re prepping in advance, just stick everything in the tin, pop it into the fridge and take it out 15 minutes before you’re ready to cook, bearing in mind that if it’s all super cold, it’ll take a little longer in the oven.