You don't need special equipment to cook healthy veggies for dinner -- a heatproof sieve or colander is a perfectly good substitute for a steamer basket. Pick one that fits along the rim of a saucepan. Fill the pan with an inch of water, and bring to a gentle boil. Place cut-up vegetables in the sieve (don't overload it), and cover the pan. Cooking times will vary depending on what you're steaming. In general, when vegetables, such as broccoli and green beans, are crisp-tender and bright in color, or when potatoes can be easily pierced, they're done.
Kitchen Tip: DIY Steamer
Everyday Food, January 2009