Darina Allen: summer salads — lettuce not forget the zingy dressing

Oaxacan Black Bean Salad with Corn, Avocado and Lime Vinaigrette is a really special summer lunch option

Oaxacan Black Bean Salad with Corn, Avocado and Lime Vinaigrette

I've had lots of requests for summer salads so this week I am going to keep the 'chat' shorter for a change and include the maximum number of gorgeous summer salads in my column.

But first a few tips: