Asparagus contains asparagine, an amino acid that breaks down fat. It’s also a natural diuretic.
Trim asparagus, carrot, and zucchini ends. Slice into ribbons with vegetable peeler or mandolin slicer, discarding outside ribbons of carrots and zucchini; discard zucchini core.
Divide vegetable ribbons among four salad plates. Drizzle with vinaigrette. Top with diced red onion, crumbled goat cheese, and optional vegetables, if desired.