Ill usually steam frozen veggies.
I prefer to steam my veggies anyway, I never cook them in water.
I just put them in a strainer that fits perfectly on a pot.
Sort of like this. The smaller strainer sits at the top and just cover it.
Nice crunchy veggies. They never come out soggy.
Thats what Ill usually do for stuff like broccoli, peas or corn. For stuff like Asparagus or brussel sproats, Ill grill them with a touch of olive oil and garlic. Theyre delicious off the grill. If Im lazy, I might use the toaster oven.