Thanks for all the suggestions from everyone... Turns out the best bet for our budget won't be any of the suggestions above... By using the suggestions above, we found a review website that you all may find useful
http://www.restaurantsaruba.com/dinner_beach.html. Many of the beach restaurants were well over $120 USD per couple.
We did find a great spot that has a $30 per person guarantee at the Divi called the
Sunset Beach Bistro . We aren't in it for super fancy gourmet food, just good food with a great romantic sunset. We can even make reservations through their website for our trip.