Vegetable oil, for the grill
1 1/2 pounds pork tenderloin, cut into 1-inch cubes
1 pound andouille sausage, sliced 1/2 inch thick
4 slices thick-cut bacon, cut into 1-inch pieces
3 dill pickles, sliced 1/4 inch thick
2 large banana peppers, seeded and cut into 1-inch pieces
2 large onions, quartered and cut into 1-inch pieces
Kosher salt and freshly ground pepper
1/4 cup whole-grain or Creole mustard
1/4 cup extra-virgin olive oil