Step 1

Preheat the oven to 425 degrees F.

Step 2

Toss the broccoli with 3 tablespoons olive oil and the red pepper flakes on a rimmed baking sheet. Sprinkle with salt and pepper.

Step 3

Mix the tomatoes with the garlic in a small bowl. Sprinkle with salt and pepper.

Step 4

Roast the broccoli until it begins to turn brown, 16 to 18 minutes. Add the tomatoes to the baking sheet, then toss with the broccoli and roast until tender, about 6 minutes.

Step 5

Meanwhile, divide the flatbreads between 2 baking sheets. Top with the mozzarella, leaving a 1-inch border, then top with the broccoli and tomatoes. Sprinkle with the olives and pepitas. Brush the edges of the breads with the remaining tablespoon olive oil.

Step 6

Bake until the mozzarella is melted and the flatbreads are very warm, about 8 minutes. Drizzle a little olive oil on the tops and sprinkle with more red pepper flakes if you like it spicy. Cut into wedges and serve.