Slice french bread into 16 slice ½ inch (1 cm)thick. Spread each slice with a little butter. Place a slice of cheese on each. Place on a baking sheet. Bake at 400°F(200°C) until golden. Allow to cool.
Tear lettuce into bite-size pieces. Arrange lettuce, citrus segments, snow peas and blueberries on serving plates. Garnish with toasted goat's cheese croutons.
Combine walnut oil, vinegar and mustard. Sprinkle over salad.