There are days when I crave thick chewy udon noodles and rich, thick sauce so this Easy Saucy Udon Noodles recipe was born. The udon noodles are cooked in this thick, flavorful sauce packed with vegetables and protein of your choice. The sauce is inspired by thick Chinese birthday noodle sauces we make at home and is thickened with some corn starch for more body to better coat the noodles.