M.C.
my daughter and I like to eat smoothies, grilled cheese (multigrain bread with cheddar with extra virgin olive oil) and veggies to dip. anything pasta... soups... At that age kids will eat almost anything if they think it is fun... my daughter likes "ants on a log" (celery sticks with peanut butter and raisins) or broccoli "little trees"
For great ideas get a cute kids cookbook, the recipes are geared towards kids so they are usually quick, easy and fairly healthy- great for lunches- plus they would be a great way to start getting her involves in basic cooking. We have "Chicken soup for the soul, kids in the kitchen" by jack canfield and "the Green princess cookbook" by barbara beery, and I also plan to get "the toddler cookbook" by annabel karmel (I have her first meals food diary" which I loved for making baby food.
Good Luck!
-M.