In a small bowl whisk together dressing ingredients.
Place red onions in baking dish lined with foil. Drizzle with 2 tablespoons of prepared dressing and toss well. Cover tightly with foil and bake at 350 degrees F for 30 minutes. Remove from oven and let cool.
Mix 1 tablespoon of olive oil with crushed garlic. Brush onto bread slices. Broil or grill bread for 1-2 minutes on each side until toasted. Cut bread into strips about 1/2 inch wide. Place bread, roasted onions, arugula, fennel, bell pepper, pinenuts and grapes in large bowl, and toss with remaining vinaigrette. Sprinkle with Parmesan and serve.
Sponsor Recipe Courtesy of Grapes from California