Baked Ziti with herbs

1 lb chicken sausage (sub sweet or hot italian sausage) 1 onion , diced 3 -4 garlic cloves , minced 1 tablespoon olive oil 28 ounces diced tomatoes 28 ounces[...]

4 ounces uncooked ziti pasta 1 tablespoon olive oil 2 cups chopped yellow squash 1 cup chopped zucchini 1/2 cup chopped onion 2 cups chopped tomatoes 2 garlic[...]