Sausages with French Green Lentils

Name: Sausages with French Green Lentils
Ingredients: 2 oz. smoked bacon, thinly sliced crosswise; 1 Tbsp. unsalted butter; 1 small onion, finely chopped; 1 small carrot, finely chopped; 1 rib celery, finely chopped; 4 sprigs flat-leaf parsley; 4 sprigs thyme; 2 fresh bay leaves; 12 oz. green Puy lentils, rinsed and drained; 2 tsp. dijon mustard; 1 tsp. red wine vinegar; Kosher salt and freshly ground black pepper, to taste; 8 fresh pork sausages, such as sweet Italian sausages; 1 cup white wine; 1 Tbsp. extra-virgin olive oil