Preheat your oven to 180°C/356°F.
Halve your artichoke hearts, chop up the peppers, break off the ends of your asparagus, slice your onions and place into a baking tray. Add your olives, garlic, and tomatoes.
Break up the ciabatta and add this to the tray. Season with a pinch of salt and a good grinding of pepper. Sprinkle your chilli flakes in. Give the tray a generous drizzle of olive oil and stir it all together. Place into the oven for 30 minutes.