Frustrated with their diets

I agree with talking to your SIL first. I'm fine with my boys eating those foods occasionally, but not every meal, and always with a veggie and a fruit (and plain milk or water)! Maybe you could explain it's easier for you to make one (healthy!) meal for everyone and see if she's OK with her kids eating it too. I agree too with trying to graadually expand their horizons and help them realize healthy foods can taste good too!

i think the first place you should start is your sister. maybe she's just sending over what would be easiest for you, or what's cheapest for her to provide. maybe she WANTS them to eat better, but just doesnt know where to start. i know i'd be loathe to tell some one "by the way i know my kids are brats about food, why dont you fix that for me!" she also might not appreciate the effort.

try chocolate soy milk, or even better vanilla soymilk with ovalteen. we used less than half the rec. serving for ovalteen.

BTW, the chicken nuggets the kathryn talked about, i make the same thing, only i bake them. if you get the good freezer bags you can make up alot at once, cook them about half way, then pull them out just like regular chicken nuggets. there are also lots of premade chicken nuggets out there that arent terrible for you. tyson makes one with a whole wheat breading.

fruit popcicles- i make banana pudding pops, i just mix smashed banana with chocolate pudding i've made using vanilla soy milk. if you're maing plain fruit pops i suggest adding in some sort of fruit juce b/c otherwise the water isn the fruit freezes into these pockets of plain frozen water which is yucky.