Argentinean Grilled Pork Tenderloin

pork tenderloin red "b" potato broccolini yellow jumbo onion green bell pepper water Italian parsley extra virgin olive oil grapeseed oil olive oil sherry vinegar fresh cilantro garlic shallot carrot celery salt black ground pepper chia seed granulated garlic dried oregano ground cumin crushed red pepper ground coriander paprika granulated onion chili powder italian seasoning ground rosemary ground thyme cayenne pepper