Fresh Broccoli and Apple Salad with Walnuts

medium heads of broccoli (chopped into small pieces)

large carrot (grated)

apple (cored and finely chopped)

medium onion (1/4 cup, finely chopped)

walnuts (toasted on a skillet and coarsely chopped)

raisins or cranberries

mayonnaise

sour cream

lemon juice

sugar (or add to taste)

sea salt

pepper