How to Make It
Place dough on a lightly floured surface, and divide into 16 (1-ounce) pieces. Roll each piece into an 8-inch rope, and twist into a knot. Place rolls on a baking sheet lightly dusted with flour. Lightly coat rolls with cooking spray, and cover lightly with plastic wrap. Let rest in a warm area until puffed, about 1 hour.
Preheat a gas grill to medium (350°F to 400°F) on 1 side, or push hot coals to 1 side of a charcoal grill. Combine butter, garlic, and thyme in a small saucepan. Place saucepan over lit side of grill; cook, stirring occasionally, until butter melts, about 6 minutes. Move pan to unlit side of grill, and cover to keep warm.
Remove plastic wrap from rolls, and gently brush with melted butter mixture. Add rolls very gently to lit side of grill. Grill, covered, until lightly browned and cooked through, about 12 minutes, turning occasionally. If rolls start to get too dark, move to unlit side of grill. Place rolls on a platter, and drizzle with remaining butter mixture. Sprinkle with cheese and parsley.