Preheat your oven to 400°F (200°C).
On a baking sheet, toss Brussels sprouts with 1 tablespoon (15 ml) olive oil, 1/2 teaspoon (2.5 g) salt, and 1/4 teaspoon (1 g) black pepper. Roast for 20-25 minutes until caramelized and tender, stirring halfway through the cooking time.
While the Brussels sprouts are roasting, combine quinoa and water in a medium saucepan. Bring to a boil over high heat, then reduce heat to low, cover, and simmer for 15 minutes until the water is absorbed. Remove from heat and let stand for 5 minutes, then fluff with a fork.
In a small bowl, whisk together the remaining 2 tablespoons (30 ml) olive oil, lemon juice, honey, garlic, remaining 1/2 teaspoon (2.5 g) salt, and remaining 1/4 teaspoon (1 g) black pepper to create the lemon dressing.
In a large bowl, combine the roasted Brussels sprouts, cooked quinoa, parsley, almonds, cranberries, and feta cheese.
Pour the lemon dressing over the salad and toss to coat evenly.
Serve the salad warm, or allow it to cool to room temperature before serving.