Zucchini, Sausage, and Feta Casserole

INGREDIENTS

• 2 1/2 cups uncooked ziti pasta
• 1/2 lb Italian sausage
• 2 tablespoons olive oil
• 5 cups thinly sliced zucchini (1 1/2 lbs.)
• 1 medium onion, thinly sliced
• 1/2 teaspoon salt
• 1/4 teaspoon fresh ground black pepper
• 3 garlic cloves, minced
• 1/2 cup chicken broth
• 2 teaspoons all-purpose flour
• 1/2 cup crumbled feta cheese
• 3/4 cup shredded mozzarella cheese