In a medium sauce pan on medium high heat, add broth. Bring broth to a boil. Add quinoa, stir and cover. Reduce heat to medium low. Simmer for 15 minutes until all liquid is absorbed. Remove from heat and set aside.
In a large sauté pan on medium heat, add olive oil, onion and garlic. Sauté for 2-3 minutes. Add meatballs and broccoli. Cook for 5-7 minutes, stirring occasionally. Season with salt and fresh ground pepper.
Divide the quinoa into four bowls. Top each bowl with 5 meatballs and sautéed broccoli. Serve hot.