I don't really have a major issue with my weight but could lose a little.
For me what seems to work is controlling things at the point of buying them. If you don't buy it and take it home its not there to tempt you. I still let myself have some treats, but i'm trying not to buy multipacks, even if its more expensive to buy individually.
My favourite healthy meals at the moment are tuna steaks with vegetable salad, usually some crushed almonds and dressing. Vegitable omlette is the other, I have some grated cheese on that but not a crazy amount. For breakfast I mostly have a museli, nice with hot milk.