WOW ! That place sure isn't Olive Garden, is it ? LOL !!
Actually, I think you're going to be fine. Places like this tend to serve portion controlled plates of high quality food. In short, small servings for large prices. So, you could get the three course meal and still be well within your calorie range for the day.
Whether or not you'd be in your $$$ range for the day is another matter. Sheesh, for those prices, the food had better be nothing less than exceptional.
Enjoy your meal ! Remember, ONE meal will not make or break your day, your week or your healthy lifestyle.
AND according to the website they automatically charge 20% tip for tables over five !