Lentils Stewed in Tomatoes and Red Wine

Name: Lentils Stewed in Tomatoes and Red Wine
Ingredients: 4 slices of bacon, cut into small cubes (for vegetarian version, replace with 2 Tbsp butter); 2 large celery sticks, thinly sliced; 1 medium onion, chopped finely (3/4 cup chopped); 3 cloves garlic, minced; 2 Tbsp olive oil; 4 large carrots, chopped small; 2 cups green French Puy lentils (dry lentils, not canned); 1 1/2 cup red wine; 1 Tbsp dijon mustard; 1 Tbsp cane sugar (or maple syrup); 1 can (28 oz.) crushed tomatoes (or 3 cups fresh or frozen chopped tomatoes); 4 to 5 cups vegetable or chicken broth (or water); 1 cup chopped flat-leaf parsley; Salt and pepper to taste