I thought I would put on here my recipe for microwave-steamed squash, zuccini, tomatoes and onions.
Put sliced veggies of the above (or any other) variety in microwave-safe bowl.
Put a little water in the bottom.
Add a splash of olive oil and whatever spices you want.
Cover tightly with plastic wrap.
Nuke on high for about 2 minutes, check for doneness, then keep nuking until the veggies are steamed to your liking.
Eat and enjoy.