1
Preheat the oven to 400°F. Wrap the garlic in tin foil, drizzle with olive oil, and roast until very tender and fragrant, about 20 minutes.
2
Remove the roasted garlic cloves from the head and place in a blender, along with the remaining dressing ingredients except the oil. Purée until smooth, adding water if necessary. With the motor running, drizzle in the oil until emulsified. Season to taste.
3
Toss the salad ingredients in a large bowl. Mix with creamy lemon dressing and serve.