Dandelion, Kale, Cara Cara and Kumquat Salad with Spice-roasted Walnuts

Ingredients

• 3 Cara Cara oranges
• 2 tablespoons white balsamic vinegar
• 3 tablespoons extra virgin olive oil
• Kosher salt
• freshly ground black pepper
• 1 small bunch tender young dandelion greens, ends trimmed
• ½ bunch curly kale, stems removed and leaves torn into 1 to 2-inch pieces
• 12 kumquats, thinly sliced
• ¾ cup Moroccan-spiced walnuts