01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper.
02 - Rinse the farro under cold water. In a medium saucepan, combine farro, 3 cups water, and 1/2 teaspoon salt. Bring to a boil, then reduce to a simmer. Cook uncovered for 25–30 minutes or until farro is tender but still chewy. Drain any excess water and set aside.
03 - Toss asparagus, broccolini, and sugar snap peas with 2 tablespoons olive oil, 1/2 teaspoon salt, and black pepper. Spread evenly on the prepared baking sheet. Roast for 15–18 minutes, stirring halfway, until vegetables are tender and slightly charred.
04 - In a small bowl, whisk together olive oil, lemon juice, Dijon mustard, minced garlic, honey or maple syrup, and a pinch of salt and pepper to make the dressing.
05 - In a large bowl, combine cooked farro, roasted vegetables, and baby spinach. Pour the dressing over and toss well to combine.
06 - Transfer to a serving platter. Sprinkle with feta cheese (if using), fresh herbs, and lemon zest. Serve warm.