Combine first 3 ingredients in a food processor; pulse 10 times or until finely chopped. Heat oil in a Dutch oven over medium-high heat. Add vegetables; saute 5 minutes, stirring occasionally. Add ham, bay leaf, beans, and broth; bring to a boil. Reduce heat; simmer 12 minutes or until vegetables are tender. Remove from heat; stir in vinegar and pepper. Discard bay leaf.