Combine first 4 ingredients in a medium saucepan; bring to a boil.
Cut baby vegetables in half, if desired. Combine baby vegetables and next 7 ingredients in a large bowl. Pour hot vinegar mixture over vegetable mixture. Toss well. Let stand 2 hours. Cover and chill 24 hours before serving, stirring occasionally. Store in refrigerator up to 1 week.
Note: Vegetable mixture can be evenly divided among 4 (1-pt.) jars.