Brush the crostini with a little olive oil. Season with salt and freshly ground black pepper and place on a baking tray. Bake for 10 minutes, until slightly toasted and crisp. Set aside.
Blitz together the feta, crème fraîche, honey, chilli flakes and some seasoning in a blender. Scrape the sides of the bowl and process again until smooth.
Transfer to a serving bowl, sprinkle with chilli flakes and drizzle with honey. Serve with crostini, the halved cherry tomatoes and some lightly dressed baby salad leaves.