Just to tie together the two previous posts...at Blue Bayou, there are no separate appetizers on the menu, so you can't just order a gumbo or a salad by itself - they come with your entree. If you want your own gumbo or salad (you pick one), but would like a bite of your DH's sandwich and sides, then you'll want the split plate charge, which as a previous poster mentioned is $12. If you just want to pick off of is sandwich, you can ask for an empty plate, but you won't get your own cup of gumbo or salad. The gumbo is a small cup, not a bowl big enough for a meal.
If you want something light, I've had the chicken breast and didn't think it was too heavy at all.