Don’t even bother to say “supersize it” at Zephyr. The menu boasts dishes that are Texas-big, and while some are delicious, others have the flavor of chain restaurant fare. A yellow pepper soup that “you’ve heard people talking about,” according to the menu, had little fresh flavor. Our favorite dish, the potato-wrapped halibut, had a crisp coating of golden-baked potato that kept the fish so moist and tender it was almost creamy. Otherwise, steak seems to be the no-nonsense way to go, and an interesting selection of reasonably priced red wines encourages forays in that direction. Zephyr is high ceilinged and airy, with handsome booths and an impressive bar. It’s an interesting part of the downtown Livermore dining scene, if not a culinary sensation. Lunch and dinner daily, brunch Sun.