Food at Range was good but menu is all over the place, but its not in Bethesda and parking is annoying. And you'll be eating dinner in a mall.

For a date night in downtown Bethesda, I'd go with Black's, Grapeseed, Jaleo or Redwood. I like the food at Black's and Grapeseed best, but Jaleo and Redwood will have better options for walking around afterward.

8407 Kitchen Bar:

http://8407kb.com/

http://8407kb.com/common/images/8407kbDinner.pdf

Jackie's:

http://www.jackiesrestaurant.com/

http://www.jackiesrestaurant.com/Jackies%20Dinner%20&%20Dessert%20Menu%20June%2014%202013.pdf

For a cool vibe, I think Jackie's is probably what you're looking for.