Red Wine and Butter Pot Roast with New Potatoes

Name: Red Wine and Butter Pot Roast with New Potatoes
Cuisine: American
Ingredients: 2 tsp vegetable oil; 2 ½ lbs beef chuck roast, cut into 4 pieces; 1 yellow onion, chopped; 4 garlic cloves, minced; 2 carrots, peeled and chopped; 1 celery stalk, chopped; ½ cup red wine; ¼ cup unsalted butter, melted; 2 cups beef broth; 2 tbsp tomato paste; 1 tbsp Dijon mustard; 1 lb baby potatoes; 2 tbsp fresh parsley, chopped; 4-8 slices crusty French bread