In small bowl, whisk together olive oil, 2 tbsp (30 mL) vinegar, garlic, oregano and salt. Measure out 3 tbsp (45 mL) of olive oil mixture into a large bowl; toss with pork and let stand 10 min.
Thread marinated pork onto skewers, alternating with mushrooms. Toss zucchini with reserved olive oil mixture in small bowl.
Place pork and mushroom skewers on grill preheated to medium-high. Cook 8 to 10 min., turning occasionally, until pork is cooked through and mushrooms are tender. Meanwhile, grill zucchini 4 to 5 min. per side, until tender and marked. Grill naan bread 1 to 2 min. per side until toasted.
Make goat cheese sauce by blending cheese, milk, dill and remaining vinegar with whisk until smooth. Lay zucchini slices and skewers on naan breads. Drizzle with goat cheese sauce to serve.