01 - Preheat oven to 425°F.
02 - Toss sweet potato, red bell pepper, zucchini, and red onion with 1 tablespoon olive oil, garlic, thyme, oregano, salt, and black pepper on a large baking sheet. Roast for 20 to 25 minutes, stirring halfway through, until tender and caramelized.
03 - Bring quinoa and vegetable broth to a boil in a medium saucepan. Reduce heat to low, cover, and simmer for 15 minutes until liquid is absorbed. Remove from heat and let stand covered for 5 minutes. Fluff with a fork.
04 - Heat remaining 1 tablespoon olive oil in a large skillet over medium heat. Add spinach and cook until just wilted, approximately 2 minutes.
05 - In a large bowl, gently toss cooked quinoa, roasted vegetables, and wilted spinach until evenly mixed.
06 - Divide mixture among plates and garnish with optional crumbled feta, toasted pumpkin seeds, and chopped fresh parsley.