On the walk from the Duomo to the Navigli:
My mom had read about aperitivo before coming to Milan and wanted to try one.
Aperitivo is the happy hour of Milan... it's the best way to eat cheap and eat at a 'normal' dinner hour.
Restaurants do not open until 7:30 or 8:00pm... but aperitivos began around 5:30 or 6:00pm. A person orders one drink (any drink off of a menu of probably 15 pages or so) and then you eat as much as you want from the buffet offered. We found a bar/restaurant on the Navigli and enjoyed an aperitivo experience. It's not my favorite... the food is nothing better than 'alright'... but it is fun to go, have a drink, and hang out. The aperitivo we had offered a delicious mini tiramisu on cups!
Where we had aperitivo: