Napa Valley Burger

Ingredients

• 1/4 cup Dijon mustard
• 1 heaping tablespoon clover honey
• 1 1/2 teaspoons grated Meyer lemon zest, or 1 teaspoon grated orange zest and 1/2 teaspoon grated lemon zest
• 1 1/2 tablespoons Meyer lemon juice, or 1 tablespoon fresh orange juice and 1 teaspoon fresh lemon juice
• Kosher salt and freshly ground black pepper
• 1 1/2 pounds ground chuck (80 percent lean) or ground turkey (90 percent lean)
• Kosher salt and freshly ground black pepper
• 1 1/2 tablespoons canola oil
• 8 round slices fresh goat cheese, each 1/2 inch thick
• 4 sesame seed hamburger buns, split; toasted (see page 15), if desired
• 1 handful of watercress