Spiced Root Vegetables with Pumpkin Seeds

Name: Spiced Root Vegetables with Pumpkin Seeds
Ingredients: 2 teaspoons coriander seeds; 2 teaspoons cumin seeds; 1 pound parsnips, peeled, trimmed and halved or quartered lengthwise; 1 pound turnips, peeled, halved and cut into small wedges; 1/2 celery root (about 1 pound), peeled and cut into 3/4-inch pieces; 1/4 cup extra-virgin olive oil; 3 cloves garlic, grated; 1 teaspoon paprika; Kosher salt and freshly ground pepper; 1/4 cup unsalted pepitas (green pumpkin seeds); Flaky sea salt; Chopped fresh cilantro, for topping