Ingredients

1 orange, skin and white pith removed

1/4 cup olive oil

3 tablespoons balsamic vinegar

1/8 teaspoon orange zest

Kosher salt and freshly ground black pepper

1 shallot, thinly sliced

1 medium radicchio, sliced into 1/2-inch strips

1/4 cup (packed) flat-leaf parsley leaves

1/2 cup chopped walnuts, toasted

Preparation

Using a paring knife, slice orange between membranes to release segments into a medium bowl; set aside. Squeeze orange membranes over a small bowl to release juices; measure 3 Tbsp. into a medium bowl (drink the rest!). Whisk in oil, vinegar, and orange zest; season with salt and pepper. Add shallot to vinaigrette and let sit for 5 minutes to soften. Add orange segments, radicchio, and parsley; toss to coat. Divide among plates and top each salad with walnuts.