Slow Cooker Pepper Steak with Tender Sirloin Strips

Introduction

This classic Pepper Steak in a crock pot is a comforting, savory dish built on tender strips of beef sirloin simmered slowly with bell peppers, onions, stewed tomatoes, and a simple, flavorful sauce. The long, gentle heat of the slow cooker breaks down the meat until it’s incredibly tender, allowing the peppers and onions to soften and release their sweetness into the broth. The soy sauce, bouillon, and tomatoes create a rich base, while the cornstarch thickens the liquid just enough to coat the beef and vegetables beautifully.

Because the recipe begins by searing the sirloin strips, you get deeper flavor and a richer finished dish. The sautéing step caramelizes the outside of the meat slightly, locking in juices before the slow cooking begins. Once everything is combined in the crock pot, all that’s left to do is let time do the work, resulting in a dish that tastes like it simmered on the stove all afternoon — without the effort. Whether served over rice, noodles, or with crusty bread to soak up the sauce, this pepper steak is a warm and satisfying meal perfect for busy days.

Ingredients