Food for weightloss.?

Since giving birth I have a stone to lose to return to my pre baby weight. I used to be a keen gym goer but as I'm a single parent I don't have the time to go any more. Obvioulsy I know you must exercise in order to lose weight but I'm struggling to think or quick and easy meals to make for myself to help with losing the pounds. I'm a very fussy eater also which doesn't help. At the minute I'm either picking at things or not eatting at all. Can any one advise some quick healthly meals that can keep my energy up and also aid my weightloss.