Cheesy Kielbasa Casserole

Ingredients

• 12 ounces uncooked elbow macaroni
• 1 pound kielbasa or polish sausage, sliced
• 1 tablespoon olive oil
• 1 medium onion, chopped
• 2 medium zucchini,quartered and sliced
• 2 medium carrots, grated
• 1 garlic clove, miced
• 1 jar{1 pound 10 ounce} spaghetti sauce
• 1 can {14-1/2 ounces} stewed tomatoes
• 1 egg beaten
• 1 {15 ounces} ricotta cheese
• 2 cups shredded Cheddar cheese
• 2 cups shredded mozzarella cheese
• 2 green onions, chopped