Slow-Cooker Red Wine Beef Stew

Name: Slow-Cooker Red Wine Beef Stew
Prep time: 20 min
Total time: 20 min
Cuisine: American
Ingredients: 3 lb. beef chuck, cut into 2" pieces; Kosher salt; Freshly ground black pepper; 2 tbsp. extra-virgin olive oil; 2 tbsp. butter; 1 2/3 c. dry red wine; 1 tbsp. tomato paste; 2 Yukon Gold potatoes, cut into 1" cubes; 3 carrots, chopped into 1" pieces; 3 celery stalks, chopped into 1" pieces; 2 onions, chopped into quarters; 1 c. chopped sun-dried tomatoes; 4 cloves garlic, minced; 1 large rosemary sprig; 2 c. low-sodium beef broth; 1 (28-oz.) can crushed tomatoes; Freshly chopped parsley, for garnish