stir together the spice blend including the onion powder, garlic powder, chili powder, ground cumin, salt, and red pepper flakes.
add half of the spice blend to the cooking liquid with the quinoa for extra flavor. cook the quinoa according to package directions.
toss the vegetables in olive oil and sprinkle with the remaining spice blend. Lay the veggies out on a baking sheet, and bake for 15 minutes.
divide up the quinoa, veggies, black beans, and additional toppings like salsa or yogurt between four meal prep containers. store in the fridge for up to 4 days.
serve warm or cold with freshly sliced avocado.