Place pasta into a large bowl, add boiling water, cover and leave to stand.
Chop zucchini, grape tomatoes, onion and capsicum into small to medium pieces (approx. 1-2cm)
In a hot frying pan add oil, chopped vegetables and toss.
Add pesto to vegetables, toss occasionally until tomatoes collapse and vegetables become tender.
Drain pasta and place cooked pasta in two bowls, spoon cooked pesto vegetables onto of cooked pasta.
Serve topped with crumbed feta (optional)