Baked Ziti

from my sister Elizabeth

12 oz ziti or rigatoni
2 teaspoons olive oil
1 large onion, minced
3 cloves garlic, minced
2 carrots, minced
1 stalk celery, minced
1 lb ground pork or sausage*
½ cup water
2 Tablespoons flour
½ cup milk
24 oz tomato sauce
¾ teaspoon oregano
½ teaspoon rosemary
½ teaspoon salt
¼ teaspoon pepper
1 cup mozzarella cheese
¼ cup Parmesan cheese

Cook pasta and drain. Transfer to a large bowl. In a large non-stick skillet, heat oil. Add onion and garlic; cook until softened. Add carrots and celery, cook until soft. Add pork to vegetables and cook through. Add the water and cook until it is almost evaporated. Stir in flour until well combined. Stir in milk until slightly thickened. Stir in tomato sauce and seasonings. Cook about 5 minutes. Add meat to pasta, mix well. Pour into a greased 9x13 baking pan. Cover with foil and bake at 400 degrees for 30 minutes. Remove foil, add cheese and bake 10 minutes more. Serves 8-10.
**I usually do 1 lb of ground beef and 1 lb of sausage.**