In a medium bowl, combine turkey, basil, mustard, garlic, salt and pepper. Use your hands to mix gently but thoroughly. With slightly moistened hands, form mixture into 4 3/4-inch-thick patties, making a small indentation in the center of each.
Prepare a gas or charcoal grill for direct, medium-high-heat grilling. Lightly oil grate just before adding burgers. Cook until browned on 1 side, about 4 minutes. Flip and cook until opposite side is well browned and juices run clear, about 4 minutes longer. (An instant-read thermometer inserted into the center of a burger should read 165°F.) Place buns on grill to toast for the last 30 seconds to 1 minute that burgers are cooking.
Place 1 burger on bottom half of each bun. Top with Artichoke-Goat Cheese Spread and top halves of buns.
Nutritional analysis is for burger only.