Clean and wash the spring onions. Wash the bell peppers and capsicums. Halve the peppers. Cut the sausages diagonally into pieces. Put all ingredients alternately on 8 skewers and fry them on the grill all around for about 10 minutes. Wash the basil, dab dry and pluck the leaves from the stalks. Arrange the skewers on a plate and garnish with basil