Leeks Vinaigrette with Scallops, Clams, and Roasted Root Vegetables

I tried Leeks Vinaigrette for the first time late this summer while working at The Market Restaurant. I hadn’t heard of it before but instantly loved it, since I’m a sucker for mustardy dressings. Basically, it’s poached leeks with a mustardy vinaigrette, and is typically served with soft- or hard-boiled