How to Make It
Whisk together first 6 ingredients in small bowl. Add oil in a slow, steady stream, whisking constantly, until smooth.
Snap off and discard tough ends of asparagus. Cut squash and asparagus into thin, ribbon-like strips, using a vegetable peeler; place in a large bowl. Add radishes, vinaigrette, 1/4 cup almonds, and 1/4 cup feta; toss to combine. Season with salt and pepper; top with remaining 1/4 cup each almonds and feta. Serve immediately.