Casual B-Day Dinner

One of my good friends (and his girlfriend) from college wanted to take me and my SO out for my b-day. This was the first we could all get together (my b-day was a few weeks ago), but I was still happy to be able to celebrate with them. My friends are pretty low-key and not all about getting all fru-fru for dinner, so I wanted to wear something simple, on the casual side, but still a tad dressy. Here's my dinner look: