A souful bistro rises from an old Fosters Freeze. Neptune’s describes itself as “an American eatery with a Southern touch,” which about sums it up. Sure, some Americans eat Filipino lumpia and Hawaiian Spam musubi, which are on Neptune’s menu. And cheesy shrimp and grits, fried chicken, and greens are certainly Southern. But there are extra funky-fusiony twists added here, like fried oyster in the bacon omelette or with the cheddar grits. There’s Spam in the chili and rice—wait, what? And a tomato jam comes with the savory waffle made with bacon batter. That summer drink, the Arnold Palmer, is iced Earl Grey lemonade with muddled mint and about perfect. The burger—add bacon or an egg—squishes off a brioche bun, and the market salad included strawberries, peas, and grilled zucchini atop fresh greens with a pain di mie toast slathered with marinara-ish topping. There’s a lovely patio with comfortable wicker furniture. So relax, enjoy. Serves breakfast, brunch, and lunch Tue.-Sun.