Chop onion

Trim ends from green beans and cut in half crosswise

Trim ends from zucchini and cut into 1-inch thick slices

Peel potatoes and cut into 1-inch cubes

Remove leaves from parsley and chop

Heat oil in a large nonstick skillet over medium high heat

Add onion and cook 5 minutes

Add green beans and cayenne and saute until onions are tender, about 3 minutes

Add zucchini, potatoes and parsley. Pour on tomatoes and their juices and bring to a boil

Reduce heat, cover and simmer until potatoes are tender stirring frequently, about 45 minutes

Season to taste with salt and pepper

Serve in bowls topped with feta cheese.