Beef Bourguignon

Name: Beef Bourguignon
Ingredients: 6 bacon slices, cut into 1/2-in. pieces; 1 (3-lb.) boneless chuck roast, trimmed and cut into 1 1/2-in. cubes; 2 teaspoons kosher salt; 1 1/2 teaspoons black pepper; 1 1/2 cups diagonally sliced carrots; 1 (8-oz.) package button mushrooms, quartered; 3 garlic cloves, chopped; 3 tablespoons all-purpose flour; 1 cup dry red wine; 1 tablespoon tomato paste; 1 cup chicken broth; 1 1/2 cups frozen pearl onions; 4 thyme sprigs; Fresh thyme leaves (optional)