I have a front rack like that, I use it to support the basket I have on there. The basket itself is turned sideways from the way it was intended to be mounted to create a narrower profile. Instead of hanging it from the handlebars, it rests on the rack and the hanger brackets for the bars were relocated to around the handlebar stem. A few cable ties secure it to the supporting rack. I don't have a really good pic right this sec, but this should give you an idea.
Basket Mount 01.jpg
I have an old set of carriers that used to be on the back rack that could hang on there too, if I thought I needed them or if I was planning to take a long trip. Most of the time the basket on the front holds my lunch bag when I'm going to/from work, the thermos goes in a carrier bag on the back.