Probably your best bet for food is Mise en Place, which is on Grand Central, on the west side of the river. It's a bit of a hike, especially when it's as hot as it's been here lately, but it's a very short cab ride there. The trolley doesn't go there, but it is a great way to get to Ybor City, where you can check out Big City Tavern (a beautiful space, too), the Columbia (the food isn't much but at least you'll get to see the Tampa's oldest restaurant and its fabulous historic building), Bernini (upscale Italian on 7th Avenue with a great vibe). Channelside is closer and has a lot of choices, but I haven't been to any of them so I won't offer an opinion. You could walk to Shalimar, an Indian restaurant on Morgan Street with a tandoori oven. Frankly, downtown Tampa is ghostly after dark; most of the restaurant action is on Howard Avenue, which is pretty walkable but a good ride from your hotel. Hope that helps, but maybe too late!