I discovered a great new way perk up frozen veggies. Instead of zapping them in the microwave, which isn't a bad option if you want them steamed, I put them in a glass baking dish, drizzled some olive oil and sprinkled on some Mrs. Dash and grated cheese and baked them at 350f for a good 30-40 minutes.
OMG, what a nice change of pace from zapping them. I thought the veggies would be waterlogged but they weren't and I cooked them frozen right out of the bag. It filled the house with a nice aroma too.
Granted, roasting fresh vegetable is best, but if that's not possible, go with this method.
Oddly enough it's not listed as a cooking method on any of the major brands. They all reccomend microwaving, steaming or boiling.
Roasting also brings out their flavor.

