Albondigas Soup (Mexican Meatball Soup)

INGREDIENTS:
1 pound ground beef
1/2 cup uncooked white rice
1 egg
1/2 cup chopped fresh cilantro
1/2 cup diced onions
2 cloves garlic, minced
1 teaspoon ground cumin
1 teaspoon paprika
1 teaspoon salt
1/2 teaspoon black pepper
8 cups beef broth
1 (14.5-ounce) can diced tomatoes
1 cup diced carrots
1 cup diced zucchini
1/2 cup chopped fresh cilantro
Salt and pepper, to taste
PREPARATION: