Step 1

Arrange 2 racks to divide the oven into thirds and heat to 400°F.

Step 2

Divide the broccoli, cauliflower, and red onion between 2 rimmed baking sheets. Sprinkle the smoked paprika and salt over all the vegetables, drizzle with the oil, and toss to evenly distribute.

Step 3

Spread into an even layer and roast until the vegetables are tender and browning at the edges, stirring halfway through, about 40 minutes total. Remove from the oven and squeeze a lime wedge over each baking sheet.

Step 4

Divide the hummus among 4 shallow bowls. Top each with an equal portion of the roasted vegetables, and garnish with the parsley. Serve with toast or toasted pita, if desired.