How to Make It
Heat oven to 450° F. Brush 2 rimmed baking sheets with oil.
Heat the oil, stirring occasionally, in a large skillet over medium heat. Add the garlic and cook until fragrant, 1 to 2 minutes. Add the broccoli rabe and cook, tossing occasionally, until crisp-tender but still bright green, 3 to 5 minutes.
Shape the dough into 2 rounds and place on the prepared baking sheets. Top with the marinara, radicchio, bell pepper, cooked broccoli rabe, ricotta, ½ teaspoon salt, and ¼ teaspoon black pepper, dividing evenly. Bake, rotating the baking sheets halfway through, until golden brown, 15 to 20 minutes.
Cut each pizza into 4 slices.