Heat a large high-sided skillet over medium heat until hot. Add onion and garlic and cook 2 to 3 minutes or until beginning to stick to skillet. Stir in ¼ cup broth and continue to cook about 3 minutes or until onion is translucent. Add sausage and cook 4 to 5 minutes or until cooked through, breaking up with side of spatula.

Stir in remaining broth, broccoli, carrots, kale, zucchini and olives and cook 3 to 4 minutes, stirring occasionally. Reduce heat to medium-low and stir in tomato sauce, crushed tomatoes and vinegar. Simmer 10 minutes or until vegetables are tender, stirring frequently. Add basil, parsley, oregano and pepper. Remove from heat and toss with cooked pasta and crushed red pepper and salt, if using.