1 tablespoon extra-virgin olive oil
1 large yellow onion, diced small
3 medium carrots, cut into 1/4-inch rounds
3 celery stalks, cut into 1/4-inch pieces
2 pounds beef chuck, fat trimmed, cut into 1-inch pieces
1 can (28 ounces) crushed tomatoes
1 cup low-sodium chicken broth
3 garlic cloves, smashed and peeled
Coarse salt and ground pepper
4 cups cooked brown rice
6 tablespoons nonfat plain Greek yogurt
1/3 cup chopped fresh parsley