Preheat the oven to 350° F.
In a large salad bowl, combine the greens, seeds, onions and berries.
Place the sliced bread on a baking sheet and lightly toast until golden on 1 side, about 6 minutes.Turn the slices and place the cheese on the soft sides. Return to the oven and toast until the cheese is melted and just bubbling, about 5 minutes.
In a small bowl, whisk together the oil, vinegar, salt and pepper.
Toss the salad with the dressing and divide among 4 salad plates. Place 2 cheese croutons on each plate and serve immediately.
Yield: 4 servings