Birds Eye came out sometime in the past year or so with frozen veggies in steamer bags - you microwave them for 5 minutes and VOILA! Perfectly steamed vegetables. They are fresh, tender crisp and delicious drizzled with a bit of butter and sprinkled with salt or some Mrs. Dash type seasoning.
They have broccoli, cauliflower, snow peas, whole green beans, brussel sprouts (which are my daughter's FAVORITE by the way)- and they come out with new varieties seemingly monthly. We eat a bag of these every day - super easy, delicious and nutritious. As a single working mother - this has been my favorite healthy food find ever - it makes putting together a healthy, home cooked meal on the weeknights a snap! I don't know what I ever did without them.
Ziploc has also just launched a new product of steamer bags for the microwave. They come in 2 or 3 different sizes and printed right on the bag are microwave times for various veggies and foods. I love these for steaming things like fresh Zucchini, etc.
Lisa is right - if you introduce them to real veggies early on and keep it up, they'll eat them and truly enjoy them. My daughter is 11 - but she's never been a picky eater - Picky eaters are created, not born.