This is a slow cooker version of a Chinese-inspired pepper steak, built from sirloin beef strips and colorful bell peppers simmered in a rich, savory-sweet sauce made from beef broth, soy sauce, Worcestershire sauce, honey, and ginger. The appeal is almost entirely in how little effort it takes — the ingredients go into the slow cooker together, and the long, low cooking time does the work of tenderizing the beef and building flavor without any stovetop attention required.
It’s a genuinely hands-off recipe: a few minutes of slicing vegetables and mixing the sauce, then hours of unattended cooking. The finished dish serves 6 and is versatile enough to serve over rice, noodles, grains, or a variety of side dishes, making it an easy fit for busy weeknights.
Getting Everything Ready
Because this recipe only really involves two active stages — mixing the sauce and layering ingredients — having everything sliced and measured before you start means the actual hands-on time stays as short as the recipe promises.
Equipment to have ready:
- A slow cooker (crockpot)
- A mixing glass or bowl, for the sauce
Ingredients to have ready:
- 2 lbs beef sirloin strips (or sirloin tips, beef for stir fry, or sirloin steaks sliced into long strips about 1 inch thick)
- 3 bell peppers, sliced (a colorful mix of green, yellow, red, and orange, or all green for a more classic flavor)
- 1 large onion, sliced
- 3 garlic cloves, minced (or garlic powder in a pinch)
- ¾ cup beef broth (or water and bouillon cubes)
- 3 beef bouillon cubes
- ¼ cup soy sauce
- 2 teaspoons Worcestershire sauce
- 2 tablespoons honey (or substitute agave or maple syrup)
- 1 teaspoon ground ginger (or freshly grated ginger root)
- ½ teaspoon black pepper
- ½ teaspoon salt
- 2 tablespoons cornstarch or flour (optional, for thickening)
Slicing the beef into long, even strips before it goes into the slow cooker — about 1 inch thick if starting from whole sirloin steaks — helps the meat cook and tenderize evenly over the long cook time.
Workflow: How the Process Comes Together
This recipe is built around a simple layering method, followed by a long, unattended simmer:
- Mix the sauce first, dissolving the bouillon cubes and combining all the liquid and seasoning ingredients before anything goes into the slow cooker.
- Layer the beef in the slow cooker, then pour the sauce over it.
- Top with the peppers, onions, and garlic, without stirring everything together at this stage.
- Cook on low for 6 hours or high for 3 hours, stirring halfway through if possible.
- Stir well after cooking and serve over your chosen base.
Because the peppers sit on top of the beef and sauce rather than being mixed in from the start, this layering approach gives you some control over texture — cooking them the full time lets them soften and flavor the sauce, while adding them later (see variations below) keeps them crisper.
Approved Variations & Swaps
Based strictly on what’s built into this recipe, here are the adjustments it already allows for:
- Beef cut swaps: sirloin strips are the default, but “beef for stir fry,” sirloin tips, or sirloin steaks sliced into strips all work.
- Pepper color: a colorful mix of green, yellow, red, and orange peppers is suggested, or all green peppers for a more traditional flavor.
- Garlic form: fresh minced garlic cloves or garlic powder can both be used.
- Broth swap: beef broth can be replaced with water plus bouillon cubes.
- Sweetener swap: honey can be substituted with agave or maple syrup.
- Ginger form: ground ginger or freshly grated ginger root both work.
- Thickener: cornstarch is used in the recipe but is described as optional, and flour can be used in its place.
- Crispier peppers: adding the peppers during only the last hour of cooking, rather than the full time, gives a crisper texture — though cooking them the full time allows them to flavor the sauce more.
- Spicy version: red pepper flakes or chopped jalapeños can be added for heat.
- Serving base: rice (white, basmati, brown, or wild rice blend), noodles (lo mein, ramen, or other Asian-style noodles), grains (quinoa, couscous, barley, farro), or sides like steamed vegetables, mashed or baked potatoes, mashed cauliflower, sweet potatoes, or roasted baby potatoes.
No other ingredient substitutions are specified in the source recipe, so changes beyond these listed swaps would go beyond what’s actually described here.
Step-by-Step Cooking Strategy
A few specific choices affect how the final dish turns out, both in flavor and texture.
Dissolve the bouillon cubes fully into the hot broth before combining with the rest of the sauce. Starting with hot broth helps the cubes dissolve completely, rather than leaving undissolved bits that clump in the final sauce.
Layer rather than mix at the start. Placing the beef in first, pouring the sauce over it, and topping with the vegetables — rather than stirring everything together immediately — lets the beef sit directly in the sauce while it cooks, with the vegetables gradually softening and releasing their own flavor into the mix.
Stir halfway through if you can. While this recipe is designed to be hands-off, a single stir partway through the cooking time helps redistribute the sauce and ensures even cooking, though it’s not strictly required if you can’t get to it.
Decide on pepper texture deliberately. If you want the peppers to stay crisp, hold them back and add them only during the final hour of cooking. If you’d rather they soften completely and contribute more flavor to the sauce, add them at the start with everything else.
Stir thoroughly after cooking, before serving. This final stir combines the thickened sauce evenly with the beef and vegetables, since the ingredients settle and layer during the long cook time.
Slice beef evenly if starting from whole steaks. Cutting sirloin steaks into long strips about 1 inch thick, rather than uneven pieces, helps the meat cook and tenderize consistently across the whole batch.
Crockpot Pepper Steak
Description: Tender sirloin beef and colorful bell peppers simmered in a rich, savory-sweet sauce in the slow cooker. A Chinese-inspired dish that’s perfect for busy weeknights, served over rice, noodles, or potatoes.
Duration:
- Total Time: 6 hours 10 minutes
- Servings: 6
- Calories: 267 kcal per serving
Ingredients
- 2 lbs beef sirloin strips
- 3 bell peppers, sliced
- 1 large onion, sliced
- 3 garlic cloves, minced
- ¾ cup beef broth
- 3 beef bouillon cubes
- ¼ cup soy sauce
- 2 teaspoons Worcestershire sauce
- 2 tablespoons honey
- 1 teaspoon ground ginger
- ½ teaspoon black pepper
- ½ teaspoon salt
- 2 tablespoons cornstarch or flour
Instructions
- In a mixing glass, combine the hot beef broth, bouillon cubes, soy sauce, Worcestershire sauce, honey, ginger, black pepper, salt, and cornstarch. Stir until smooth and the bouillon is dissolved.
- Place the beef strips in the slow cooker and pour the sauce over them. Top with the bell peppers, onions, and garlic.
- Cook on LOW for 6 hours or HIGH for 3 hours, stirring halfway through if possible.
- Stir well after cooking and serve over rice, noodles, or your preferred side dish.
Notes
- For crispier peppers, add them to the slow cooker during the last hour of cooking instead of at the start.
- Sirloin is the ideal cut, but “beef for stir fry” or sirloin tips also work; if using sirloin steaks, slice into long strips about 1 inch thick.
- For a spicier version, add red pepper flakes or chopped jalapeños.
- Refrigerate leftovers in an airtight container for up to 3 days, or freeze for up to 3 months.
- To freeze before cooking: place the sliced meat, peppers, and onions in a freezer bag and the sauce in a separate bag, then freeze for up to 6 months. Cook from frozen on low for 6 hours.
- Cooked pepper steak with rice can also be frozen for up to 3 months. Defrost overnight in the refrigerator before reheating.
- Nutrition per serving: 267 kcal, 18g carbohydrates, 36g protein, 5g fat, 1229mg sodium, 2g fiber, 11g sugar.
Disclaimer: This recipe is provided for general informational purposes only and does not constitute medical or dietary advice. Nutritional values are estimates and may vary based on specific ingredients and brands used, and the sodium content in particular is relatively high per serving. Individuals with food allergies, dietary restrictions, or specific health conditions (including but not limited to soy allergies or conditions requiring sodium restriction) should consult a qualified healthcare provider or registered dietitian before preparing or consuming this recipe. This recipe involves raw meat and requires cooking to a safe internal temperature; please take appropriate food safety precautions. Neither the author nor the publisher assumes responsibility for any adverse effects resulting from the preparation or consumption of this recipe.




