In a small jar or bowl add all of your dressing ingredients and shake or whisk to emulsify. Set aside.
Prepare all of your veggies as shown in the photos, wash and pat dry, then chop them. Lightly season with sea salt and pepper.
Preheat your outside grill or a grill pan over medium heat.
Carefully drizzle or spray your grill with some avocado oil and brush it all over to prevent the veggies from sticking. Never spray oil into direct flames. Using a grill safe brush is the safest way to do this.
Grill your cauliflower for 3-5 minutes, flipping halfway; set aside on a plate.
Grill the remaining vegetables until nicely charred. Once done, place them in a large platter or bowl.
Drizzle your grilled vegetables with the dressing then toss well. Sprinkle with parmesan cheese and freshly chopped parsley, if desired.