Couscous Meatball Soup

Name: Couscous Meatball Soup
Prep time: 25 min
Cook time: 40 min
Total time: 1 h 5 min
Cuisine: World Cuisine, Moroccan, African
Ingredients: 1 pound lean ground beef (90% lean); 2 teaspoons dried basil; 2 teaspoons dried oregano; 1/2 teaspoon salt; 1 large onion, finely chopped; 2 teaspoons canola oil; 1 bunch collard greens, chopped (8 cups); 1 bunch kale, chopped (8 cups); 2 cartons (32 ounces each) vegetable stock; 1 tablespoon white wine vinegar; 1/2 teaspoon crushed red pepper flakes; 1/4 teaspoon pepper; 1 package (8.8 ounces) pearl (Israeli) couscous