I use the oven chips in the orange bag that cant remember the name!!! lol. They are branded and advertise as being lower than 5% fat.
Scrap that, looked on Asda online. lol. They are McCain oven chips, straight ones. They are 3g per 100g.
Also, how about making wedges? I chop potaotes in to wedge slices, getting 12 wedges per spud so they're not too thick. I then par-boil and put in a mixing bowl. Then spray with fry-light and add BBQ Seasoning (its in a jar like the spice jars) then spread out on baking tray and cook. mmmm We love these with lasagne. I have WW or Asda Good for you frozen lasagne whilst DH has homemade.