This healthy vegetarian meal prep recipe is just 297 calories, and has 15.2 grams of protein!Try this vegetarian meal prep lunch for work, or for home... It's best served cold, making it the best vegetarian meal prep lunch box recipe!We thinned out the balsamic dressing... because the quinoa will soak it all up. You can skip adding the water, but it really does help distribute the flavors without adding more calories.