Baked Ziti with Sausage | Williams Sonoma

Ingredients

• 2 small eggplants, about 3/4 pound each
• 4 Tbs. olive oil
• 1 lb. sweet or hot Italian pork sausages, casings removed
• 1 yellow onion, chopped
• 2 cloves garlic, minced
• 1/2 cup hearty red wine 
• 1 can (28 oz.) crushed plum tomatoes
• 2 teaspoons dried oregano
• 1/2 teaspoon red pepper flakes
• 1/2 cup Kalamata olives, pitted and coarsely chopped
• Kosher salt
• 1 lb. ziti or other tubular pasta
• 2 cups ricotta cheese
• 1/2 cup freshly grated Parmigiano-Reggiano cheese