This soup will warm you up and takes just 25 minutes of prep time, making it a perfect weeknight meal. —Jonathan Pace, San Francisco, California

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

Directions

1. In a small bowl, combine the beef, basil, oregano and salt, mixing lightly but thoroughly. Shape into 1/2-in. balls. In a large skillet coated with cooking spray, brown meatballs; drain. Remove meatballs and set aside.
2. In the same skillet, brown onion in oil. Add greens and kale; cook 6-7 minutes longer or until wilted.
3. In a Dutch oven, combine the greens mixture, meatballs, stock, vinegar, pepper flakes and pepper. Bring to a boil. Reduce heat; cover and simmer for 10 minutes. Return to a boil. Stir in couscous. Reduce heat; cover and simmer, stirring once, until couscous is tender, 10-15 minutes.