Roast the sweet potatoes, section the oranges, and slice the onion ahead. Keep them all refrigerated separately until you're ready to toss the salad.
1 tablespoon chopped fresh rosemary
2 teaspoons olive oil
3 garlic cloves, unpeeled and crushed
1 1/2 pounds peeled sweet potato, cut into 3/4-inch pieces
3 cups orange sections (about 6 oranges)
1/2 cup vertically sliced red onion
3 tablespoons pine nuts, toasted
1 (6-ounce) bag prewashed baby spinach
3 tablespoons fresh orange juice
2 tablespoons olive oil
1 tablespoon stone-ground mustard
1 tablespoon rice vinegar
1 tablespoon honey
1/4 teaspoon salt
1/4 teaspoon freshly ground black pepper
1 garlic clove, minced
How to Make It
Preheat oven to 400°.
To prepare salad, combine first 4 ingredients, tossing well. Place potato mixture on a jelly-roll pan lined with parchment paper. Bake at 400° for 40 minutes, stirring occasionally. Remove from oven; cool. Discard garlic. Combine potato mixture, orange sections, onion, pine nuts, and spinach in a large bowl.
To prepare dressing, combine orange juice and remaining ingredients in a small bowl, stirring well with a whisk. Drizzle dressing over salad; toss gently to coat.