Haute Cuisine is fine for a wedding if done right. I've been to weddings with haute cuisine, and it was amazing. When you eat at a haute cuisine restaurant, usually you'll get at least 7 servings and you will feel very full after, and you should at the wedding too.

If you're planning on not having enough courses, make sure there are some filling snacks not that long before and after the meal. This could be pizza afterwards. At one wedding I was at, it was hot dogs and it was awesome :)