Step 1

Preheat the oven to 450°F.

Step 2

Place the asparagus in a baking pan. Don’t worry about finding a pan large enough to hold the asparagus in one layer – the stalks can overlap a bit. Drizzle the olive oil over them and toss gently to coat the asparagus evenly. Sprinkle on the salt, and toss again.

Step 3

Roast the asparagus for 7 to 10 minutes for thin stalks, 10 to 14 for thick ones. Remember that they will continue to cook a bit after you remove them from the oven, so take them out while they’re still a little firmer than you would like. Transfer to a plate and let cool to room temperature.

Step 4

Meanwhile stir together the mayonnaise, olive oil, rice vinegar, parsley, oregano and mustard. Season with salt and pepper.

Step 5

Drizzle the sauce over the asparagus and serve at room temperature.