1) Combine first 4 ingredients and let simmer for 10 minutes. Bring to a boil.
2) Add frozen tortellini and vegetables, cooking until tortellini are tender and vegetables are still crunchy (3-5 minutes). If using fresh tortellini, add the vegetables first since the fresh tortellini only takes a couple of minutes to cook.
3) Add freshly grated Romano cheese to individual bowls and serve.