Make the Dressing: In a mixing bowl, combine the lemon juice, garlic, and kosher salt. Gradually whisk in the olive oil until fully blended. Set the dressing aside for later use.
Cook the Quinoa: Bring a large saucepan of salted water to a boil over high heat. Add the quinoa and cook until the grains are tender but still hold their shape, about 12 to 18 minutes. Drain thoroughly and keep warm.
Steam the Greens: While the quinoa cooks, fill a pot with about 1 inch of water and set a steamer basket inside. Place the chopped greens in the basket, cover, and steam until they are tender, about 5 to 10 minutes. Transfer the cooked greens to a bowl.
Cook the Sugar Snap Peas: Place the sugar snap peas in the steamer basket, cover, and steam until they are crisp-tender, approximately 3 minutes. Remove from the heat and set aside.
Assemble the Bowls: Divide the cooked quinoa evenly among four serving bowls. Layer the steamed greens and sugar snap peas on top. Add the sliced soft-cooked eggs, if desired.
Finish and Garnish: Generously drizzle the prepared dressing over each bowl. Sprinkle with additional Pecorino cheese, thinly sliced radishes, and a dash of freshly ground black pepper. Serve immediately while warm.