Wash each squid thoroughly and pat them dry with paper towels. Cut squid body into rings, approximately 2cm wide.
In a bowl, mix olive oil, garlic, cumin, onion powder, smoked serrano chili powder, lemon zest, sweet ginger sea salt and freshly ground Tellicherry pepper.
Add squid rings (and tentacles) to bowl; tossing well to coat with the spice seasoning. Cover and let marinate for 30 minutes in the refrigerator.
Place squid on grill rack and broil in oven for 2-3 minutes on each side. The edges should curl up and char.
Squeeze lemon over squid and garnish with fresh herbs. Serve with a light salsa or any green salad.