My mom used to make rice krispie treats out of all bran cereal. It's not veggies, but it's a good way to get a kid to eat fiber.

Don't give an alternative, its healthy snacks or no snacks. Either don't keep the bad snacks in the house or put them were the kid can't get them, but if you remove them from the equation either the kid will eat the healthy snacks or the kid just won't have snacks. If the kid is over the age of 2 they don't have to have snacks if they are eating meals so its not the end of the world if they refuse the healthy snack and have none at all.

When she comes into your home, your DH pulls the crap out of her bag. You don't allow junk in the house (not when she's there).

My SD's are overweight as well, but we discovered they do enjoy eating carrot sticks and celery with low-fat ranch and salads with things like mandarin oranges and almonds. I think they never really learned to eat those things since their BM just feeds them whatever is easy (i.e., pizza and ice cream). Unfortunately we only have them EOW so we can only do so much. Also, not feeding her in between meals will work since then she will be more inclined to eat her veggies at dinner.

Atleast DH is on your side, that's huge. I know where your coming from and I know it's hard when you are only part time. I have the same issue with SS's - they aren't overweight, YET but with their eating habits severe health effects are just down the road without changes and I can't get DH to see the train coming at them.

Anyway, I purchase healthy food only for our home and try to encourage them to eat it as much as possible, it's hard but when I find them eating fruity pebbles for breakfast instead of the say the whole grain oats w/ fresh fruit BS and I have - I just have to let make the offer hope they will accept something heathly and let it go. I have managed to get them to encorporate things like grapes & carrots for chips and 100% fresh fruit pops (I make) for ice cream and sugary popcicles -- But they still will go so far as to force a "near vomitt" in front of their father if I'm so bold as to give them whole grain toast or real fruit juice instead of soda.

It's difficult when you don't have the deciding choice but recently we did find local schools with a focus on Physical Education and neg. a transfer. I also looked back into the Y camp that I attended every summer with tons of outdoor activities and balanced meals. (bonus their real goal is to teach children independence and responsiblity for their own actions) They will not be attending this summer but I have atleast gotten DH to understand that this would be of great value to them and he plans to discuss this as an option for them next summer (of course if she agrees we will be paying in full and it will be on our time, etc.)

Good Luck

You can't control what she eats. If you provide healthy meals, snacks, and activities, that's all you can do. The rest is up to her. Love her as she is, provide the best environment you can and hope you have a positive influence.