Polenta Squares With Sautéed Broccoli Rabe And Pancetta

Name: Polenta Squares With Sautéed Broccoli Rabe And Pancetta
Ingredients: 2 cups chicken stock or canned low-sodium broth; 2 1/4 cups water; Salt; 1 1/3 cups cornmeal (about 7 ounces); 1/4 cup extra-virgin olive oil; 6 ounces thickly sliced pancetta, cut into 1/4-inch dice (1 1/4 cups); 1 large onion, thinly sliced; 2 large garlic cloves, thinly sliced; 1/2 teaspoon crushed red pepper; 2 pounds broccoli rabe, coarsely chopped; Freshly ground pepper; 1/2 cup freshly grated Pecorino Romano cheese (2 ounces)