Meatballs In Chipotle Sauce

Name: Meatballs In Chipotle Sauce
Ingredients: 1 1/2 lbs. ground pork; 1 medium onion coarsely grated and squeezed firmly to remove excess liquid; 1 small zucchini coarsely grated and squeezed firmly to remove excess liquid; 1 large egg; 1/4 cup dried breadcrumbs; 2 teaspoons dried oregano; 1/2 teaspoon ground cumin; 1 to 2 chipotle chiles in adobo; Coarse salt and ground pepper; 1 (28 ounce) can whole peeled tomatoes with juice; 2 tablespoons vegetable oil; Cooked rice and chopped fresh cilantro for serving (optional)