1. Cook sausage in a large skillet over medium-high heat 4 minutes or until browned.
2. Place carrot and onion in a 4- or 5-qt. slow cooker; sprinkle with salt, rosemary, and pepper. Layer tomatoes and beans over carrot mixture. Top with sausage. Cover and cook on Low 8 hours or until vegetables are tender. Stir in spinach; cook 10 minutes. Sprinkle with bacon before serving.