I'm here at the moment, although not in Orlando. For Italian, Olive Garden aren't bad, and you certainly won't leave hungry. For steaks, i've never had a bad one at a Longhorn, although make sure you have the baked potato with it as the chips are so salty they are inedible. Well the ones I had last night were!
Red Lobster is always pretty good for seafood. I like Bob Evans for breakfast and if you just fancy chicken pie and mash Perkins are good value.