Preheat grill to 350° to 400° (medium-high) heat. Toss zucchini and peppers with desired amount of salt and pepper.
Grill vegetables, covered with grill lid, 4 to 5 minutes on each side or until tender. Remove from grill; let stand 5 minutes. Coarsely chop.
Prepare pasta according to package directions. Toss together warm tortelloni, grilled vegetables, and vinaigrette. Add salt and pepper to taste. Serve warm or at room temperature; sprinkle with basil just before serving.