- 1 1/2 pounds unpeeled assorted fingerling potatoes or baby potatoes (such as white-skinned, red-skinned, and purple), cut crosswise into 1/2-inch-thick slices
- 8 ounces trimmed sugar snap peas
- 1 bunch radishes, trimmed, sliced
- 1/2 small red onion, thinly sliced
- 1/4 cup olive oil
- 3 tablespoons fresh lemon juice
- 1 tablespoon Dijon mustard
- 1 garlic clove, pressed
- 1/2 cup freshly grated Parmesan cheese
- Steam potatoes on steamer rack set in large pot over boiling water until almost tender, about 10 minutes. Add sugar snap peas and steam until peas are crisp-tender and potatoes are just tender, 1 minute longer. Transfer vegetables to large bowl. Cool slightly. Add radishes and onion. Whisk next 4 ingredients in small bowl to blend. Whisk in Parmesan. Season dressing with salt and generous amount of pepper. Add dressing to potato mixture; toss to coat. Season with more salt and pepper, if desired. Serve warm or at room temperature.