I usually just steam some broccoli, brussels sprouts*or cauliflower, or open a can or two*of veggies.* Sometimes I'll spice things up by adding onion and garlic*to green beans or jalapinos to whole kernel corn.
You might try sauteing mushrooms with a bit of pepper and parsley, or carmalizing some onions.* Micheal love cooked onions.* They can both cook while you're getting everything else ready, and they don't take long.