To make the Mediterranean salad, put capsicums on a chargrill and cook all over until blackened. Remove from heat and place into a bowl and cover with cling wrap to steam the skin while cooling.
Heat the chargrill to a high heat. Brush each vegetable piece with macadamia oil, then season with salt and pepper. Cook the eggplant and zucchini on the chargrill on both sides until golden and softened. Remove from the heat and place into a bowl.
To make the vinaigrette. In a small bowl, whisk the macadamia oil, vinegar, sugar, mustard, salt until combined, season with pepper.
Peel the skin off capsicums, remove the seeds and cut into thick strips. Combine all the vegetables, feta, parsley and macadamias and toss with the vinaigrette just before serving.