I just made the sauce and used it on Salmon. The parsley flavor is stronger than I'd prefer, but it's good none-the-less - a very fresh flavor. I increased the lemon to 3 tsp and doubled the garlic. Next time I'd increase the basil and reduce the parsley.
Rolled Stuffed Turkey Breast & Creamy Basil Sauce
From EatingWell: May/June 1994
Here we fill a boned turkey breast with roasted plum tomatoes, fresh breadcrumbs and prosciutto then bake it for a pretty dish for entertaining. A creamy basil sauce is the perfect counterpoint. Boning a whole turkey breast is not difficult, but if you are daunted by the prospect, ask the butcher to bone it for you.