Salsa verde pork burgers with watermelon-jicama salad

Ingredients

• 1 tbsp lime zest
• 1/4 cup lime juice , (about 2 limes)
• 1 to 2 tbsp honey
• 1 large shallot , finely chopped
• 1 small jicama , peeled and cut into matchsticks (2 cups)
• 1/4 cup mini-seedless watermelon , peeled, quartered and sliced 1/4 in. thick
• 1/4 tsp ancho chili powder or chili powder
• 1/4 cup torn mint

Burgers

• 500 g lean ground pork
• 1/2 cup salsa verde , plus more for garnish
• 4 hamburger buns
• 2 to 3 tbsp mayonnaise