Sorry - this is on my mind at the mo as I am dieting too!
I don't think it matters you have two dds, just cook healthy meals and eat them as normal - it is the snacking which is the problem (assuming you are eating healthy meals that is).
Easy healthy meals we do:
Pasta, tuna or tofu (just normal tofu cut up into cubes (my ds 19mo particularly loves this also its cheap and v good for you!), tinned toms, pesto, sweetcorn
Salmon, veggies, couscous/rice
Baked potatoes, veggies, tuna mayo/sweetcorn.
Spaghetti bolognaise made with quorn mince with grated carrot and grated courgette mixed in.
Quinoa with vegetables
(we don't eat meat, that helps - perhaps cut out meat for a few weeks?)