01 - Pat steak cubes dry with paper towels. Season thoroughly with salt, pepper, Italian herbs, and smoked paprika, ensuring even coating on all sides.
02 - Heat 1 tablespoon butter in a large skillet over medium-high heat. Sear steak cubes in batches for 1-2 minutes per side until browned. Transfer seared steak to the crockpot.
03 - Add minced garlic and onion to the skillet, adding more butter if necessary. Sauté for 2-3 minutes until fragrant and softened. Pour in beef broth and Worcestershire sauce, scraping up browned bits from the bottom.
04 - Pour the aromatic mixture over the steak in the crockpot. Add remaining butter on top. Stir gently to distribute ingredients evenly.
05 - Cover and cook on LOW setting for 4 hours, or until steak reaches desired tenderness and flavors have melded together.
06 - Taste and adjust seasoning as needed. Garnish generously with fresh chopped parsley and serve hot.