Braised Beef with Autumn Vegetables

Name: Braised Beef with Autumn Vegetables
Ingredients: 3 lb. beef bottom round, trimmed of most fat and cut into 1 1/4-inch chunks; Kosher salt, to taste, plus 1/4 tsp.; Freshly ground pepper, to taste; 2 Tbs. olive oil; 1 yellow onion, finely chopped; 2 fresh thyme sprigs; 3 bay leaves; 4 garlic cloves, finely chopped; 1 cinnamon stick; 1/3 cup dry red wine; 2 Tbs. plus 1 tsp. red wine vinegar; 2 large carrots, peeled and cut into chunks; 1 can (15 oz.) diced tomatoes, drained; 1/3 cup beef or chicken stock; 1 lb. pumpkin or butternut squash, peeled, seeded and cut into 3/4-inch chunks; 2 green onions, thinly sliced; 1 Tbs. chopped fresh mint