Place the turkey in a large mixing bowl. Add the salt, pepper, parsley, basil, garlic, Worcestershire sauce, and lemon zest. Use your hands to mix well, and then form into 4 patties.
Heat a cast iron grill pan over high heat. Brush both sides of the burgers with canola oil, then grill for about 7 minutes per side. When you flip the burgers onto the second side, let cook for 2 minutes, then top with Monterey Jack cheese and let it melt while the burgers finish cooking.
When the burgers are done cooking, remove them from the grill and let rest while you prepare the avocado spread.
To make the avocado spread, place the diced avocado in a bowl along with the mayonnaise, garlic powder, salt, and Tapatio. Mash well with a fork until smooth.
When you're ready to eat, spread some mustard on each bottom bun, top each with a turkey patty, tomato, onion, cucumber, and sprouts. Spread a generous amount of the avocado spread on each top bun, and top each of your burgers. Serve right away.