Heat a Dutch oven over medium-high heat. Coat pan with cooking spray. Add pancetta and shallots to pan; sauté 5 minutes or until pancetta is crisp and shallots are tender and lightly browned. Add broth and vinegar to pan, scraping pan to loosen browned bits. Add beans to pan, tossing to coat. Cover and cook 7 minutes or until beans are crisp-tender. Remove from heat; stir in salt.