Non fat baking recipes please

[gkals]

Hi all,

I have a friend who said that her cousin cooks daily almost everything in the conventional oven.Like poriyal subji etc.She won't use oil and hence the food is healthy and also delicious it seems.Can anyone please tell me what all daily food recipes we can do in the oven.Also does anyone know how to prepare fish by baking it with no or little oil.Also i would like to know how to prepare baked beans.Please some one help me
Thanks
kalyani