"You know that phrase, “a little goes a long way?” Well, that absolutely applies to this dish, which tastes rich and buttery but actually only includes 2 tablespoons of butter! The trick is waiting until the end to add the butter when it can enrich the orzo, which has already been flavored by cooking in broth, and the zucchini, which has a naturally buttery taste when sautéed. The shrimp, also added at the end, gets infused with all the flavors already in the pan, so the whole dish is redolent of garlic and but..."