1.Make taramasalata by plaving bread in a medium bowl. Pour milk over bread; stand for 5 minutes.
2.Squeeze bread, discard milk. Process bread, garlic, onion and tarama until combined.
3.With the motor running; gradually add oil and juice, in a thin stream, until smooth and creamy (add a little hot water if necessary).
4.Preheat a char-grill or barbecue on high. Place vegetables in a large bowl. Add 2 tablespoons oil; toss to combine. Season with salt and pepper. Cook vegetables, in batches, for 2-3 minutes each side or until tender. Transfer to a heatproof plate.
5.Brush bread with extra oil. Cook bread for 1-2 minutes each side or until toasted.
6.Slice bread; arrange on a platter with vegetables and olives. Serve with Taramasalata