Vegetable paella

Name: Vegetable paella
Ingredients: 2 tbsp virgin olive oil; 1 onion, finely chopped; 2 leeks, trimmed and cut into roughly 1cm/½in slices; 2 garlic cloves, thinly sliced; 150g/5½oz paella rice; 1 tsp hot smoked paprika; a good pinch saffron strands (around ½ heaped tsp loosely packed); 2 bay leaves; 75ml/2½oz sherry or white wine; 600ml/20fl oz hot vegetable stock (made with 1 stock cube); 160g/5¾oz chargrilled artichoke antipasti, drained; 175g/6oz roasted red peppers, from a jar, drained and sliced; 50g/1¾oz pitted black olives, preferably Kalamata; freshly chopped parsley; lemon wedges