In a large pan with lid heat olive oil over medium high heat.
Add onions and cook for 1 minute.
Add garlic and cook until onions are translucent and garlic is fragrant.
Add quinoa to pan, stir to combine. Slowly add in broth and bring to a boil.Cover and reduce heat to low, cook for 15 minutes.In the last 2-3 minutes of cooking add in broccolini on top of the quinoa (do not stir) and cover.Uncover and toss broccolini and quinoa together.Season to taste with salt and pepper.