TheFork users who ate in Bagnolo Mella have said really good things about Osteria Pane & Salame, 52C - Japan Fusion Experience and Maiolica. Maybe you should give them a try!
Some of the more popular Lactose intolerance restaurants that offer dairy free options on their menu in Bagnolo Mella according to TheFork users include:
Osteria Pane & Salame, with a 8.6 rating
52C - Japan Fusion Experience, with a 8.9 rating
Maiolica, with a 8.8 rating