Recipe: <!-- -->Grilled Pork Burgers with Savory Pickled Peaches<!-- --> | Whole Foods Market

Ingredients

• 3/4 pound (about 3) firm peaches, peeled, pitted and cut into (1/2-inch) chunks
• 1 small red onion, half thinly sliced, half finely chopped, divided
• 2 tablespoons cider vinegar
• 2 tablespoons Dijon mustard, divided
• 1 tablespoon sugar
• 1/2 teaspoon coarse sea salt
• 2 teaspoons extra-virgin olive oil, plus more for the grill
• 1 pound lean ground pork
• 2 tablespoons chopped fresh flat-leaf parsley
• 1 cup packed baby spinach
• 2 pitas, halved
• 1/2 teaspoon ground black pepper