Pork Burgers with Grilled Peaches and Feta

Steps

1. In a large bowl, combine grated onion, panko, milk, Worcestershire sauce, pepper, and 2 teaspoons salt. Let sit about 5 minutes until liquid is absorbed.
2. Add ground pork to the panko mixture and gently mix until just combined.
3. Divide the mixture into 6 balls (about 6 oz each) and press into 1-inch-thick patties, about 4 1/2 inches wide.
4. In a small bowl, combine mayonnaise and Dijon mustard; set aside.
5. Brush peach halves with vegetable oil and sprinkle with remaining 1/4 teaspoon salt.
6. Preheat a grill or grill pan to medium-high and oil the grates.
7. Grill peaches cut-side down until marked, 3 to 5 minutes, then flip and cook 2 to 3 more minutes until tender. Remove and let cool slightly, then slice.
8. Grill the patties, covered, until well marked and internal temperature reaches 160°F, about 6 to 7 minutes per side.
9. Top each patty with a slice of feta during the last minute of cooking, covering to melt.
10. Spread the mayonnaise-mustard mixture on the top and bottom buns.
11. Place a burger patty on each bottom bun, then top with pickled onions, peach slices, and basil leaves. Add the top bun.
12. Serve burgers with potato chips.