Hi Laura,
I have a problem with very bitter greens myself and so have never actually bought argula, but I have seen chefs on foodtv./etc. make a pesto out of it. They process it with other fresh/dried herbs, garlic, a little olive oil, nuts (pine or walnut) and some parmesean/romano cheese. Then serve over pasta and veggies, use as a salad dressing, etc. Just a thought!
Mattea