How to Make It
Combine stock and quinoa in a small saucepan; bring to a boil over high. Reduce heat to medium-low, and simmer 15 minutes. Remove from heat, and let stand 5 minutes. Fluff with a fork, and stir in kale-spinach mix, cilantro, parsley, 5 tablespoons oil, 1/4 teaspoon salt, and 1/4 teaspoon pepper.
Using a mandoline or a vegetable peeler, slice or peel beet and carrot into very thin slices. Place beet and carrot in a medium bowl; add vinegar, garlic, and 1/4 teaspoon salt. Let stand 15 minutes, stirring occasionally.
Heat remaining 1 tablespoon oil in a skillet over medium-high. Sprinkle salmon with remaining 5/8 teaspoon salt and remaining 1/4 teaspoon pepper. Add salmon to hot oil, skin side down, and cook 6 minutes. Reduce heat to medium-low; cover and cook until a thermometer inserted in thickest portion reaches 130°F, 6 to 7 minutes. Let stand 5 minutes; flake salmon into large pieces.
Divide quinoa mixture evenly among 4 shallow bowls. Top evenly with salmon, beet mixture, and yogurt.