Preheat the oven to 400°F. Place the chopped carrots on a large baking sheet. Toss with 1 tablespoon of olive oil and sprinkle with salt. Roast for 30 minutes or until lightly golden.
While the carrots are roasting, cook the quinoa: Add 1 cup of dry quinoa and 2 cups of water in a small saucepan. Bring to a boil over high heat, then reduce to low heat and simmer for 15 minutes, covered until the water has been absorbed.
Meanwhile, prepare the vinaigrette: In a small jar, combine all the vinaigrette ingredients. Stir to combine. You can also add the vinaigrette ingredients to a small blender and blend until combined.
Drain and rinse the canned lentils. Add the lentils to the saucepan with the cooked quinoa. Top with the vinaigrette and stir to combine. Set aside.
Serve the warm lentil quinoa mixture with fresh arugula (about one handful per serving), the roasted carrots, nutritional yeast, sunflower seeds and avocado if desired. Serve warm.