Start by cooking the quinoa according to package directions (typically 15-20 minutes). While the quinoa cooks, prepare your mise en place: thinly slice the red onion into half-moons, halve the cherry tomatoes lengthwise, dice the cucumber into 1/2-inch pieces, mince the garlic cloves, and roughly chop the fresh parsley. Having everything prepped before you blend the hummus ensures the bowl comes together quickly and your components stay fresh.
Drain the 15 oz can of chickpeas in a colander and rinse them under cold water. Using your fingertips or a soft cloth, gently rub the chickpeas to remove the thin outer skins—this step creates an incredibly smooth hummus since the skins can create a grainy texture. Add the peeled chickpeas to a food processor and pulse until they reach a powdery, sand-like consistency before adding any wet ingredients.
To the chickpea powder in the food processor, add the fresh lemon juice, tahini, minced garlic, salt, ground cumin, and ice cubes. I like to add the ice cubes because they create tiny air pockets as they melt, giving the hummus an incredibly light and airy texture that store-bought versions can't match. Blend on high for about 5 minutes, stopping to scrape down the sides halfway through. The mixture should transform from a thick paste into a smooth, creamy dip with a slight sheen.
Spoon the hummus from Step 3 into a serving bowl or individual bowls, creating a shallow well in the center. Fluff the cooked quinoa from Step 1 with a fork and arrange it in the bowl alongside the fresh spinach. Create sections around the hummus with the prepared red onion, cherry tomatoes, and cucumber from Step 1, then scatter the 1 cup of whole chickpeas and olives throughout for texture and protein.
Drizzle olive oil generously over the entire bowl, allowing it to coat the hummus and vegetables. Scatter the chopped fresh parsley from Step 1 over the top for brightness and freshness. I like to give the bowl a final pinch of salt and a squeeze of lemon juice if I want extra tang, but taste and adjust to your preference before serving.