Crockpot Pepper Steak

Crockpot Pepper Steak: 6-Hour Magic for Tender Perfection

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Written by PureCookingJoy

May 24, 2025

Oh, you’re going to love this crockpot pepper steak recipe—it’s one of those magical meals that practically cooks itself while filling your kitchen with the most incredible aroma. I’ve been making this for years, and it’s become my go-to when I want something hearty, flavorful, and fuss-free. The beef turns out melt-in-your-mouth tender, and the peppers soak up all that savory-sweet sauce. My kids actually cheer when they smell it simmering! Best part? You just toss everything in the slow cooker and let it work its magic. Trust me, this is the kind of easy weeknight dinner that tastes like you spent hours in the kitchen.

Ingredients for Crockpot Pepper Steak

Gathering the right ingredients is the first step to making the most flavorful, tender crockpot pepper steak you’ve ever tasted. Here’s what you’ll need – and yes, I’m particular about a few of these details because they really do make all the difference!

  • 1.5 lbs beef sirloin – sliced thin against the grain (this is crucial for tenderness – I’ll show you how in the next section)
  • 2 bell peppers – I like using one red and one green for color, sliced into strips about 1/4-inch thick
  • 1 onion – sliced into half-moons (yellow or white both work great here)
  • 3 cloves garlic – minced (fresh is best, but 1 tsp of jarred minced garlic works in a pinch)
  • 1/2 cup beef broth – low-sodium if you’re watching salt intake
  • 1/4 cup soy sauce – regular or reduced-sodium, your choice
  • 1 tbsp cornstarch – our magic thickener that makes the sauce just right
  • 1 tsp fresh ginger – grated (I keep a knob in my freezer and grate it frozen – so much easier!)
  • 1 tbsp brown sugar – light or dark, whichever you have on hand
  • 1/2 tsp black pepper – freshly ground if possible

A quick note – if you’re like me and sometimes forget to buy fresh ginger, 1/4 tsp of ground ginger works too, though the flavor won’t be quite as bright. And don’t stress about exact pepper colors – use what looks good at the market!

How to Make Crockpot Pepper Steak

Now for the fun part – turning these simple ingredients into a mouthwatering meal! The beauty of this recipe is how everything comes together with minimal effort. Just follow these steps, and you’ll have the most tender, flavorful pepper steak ready when you are.

Preparing the Beef and Vegetables

First, let’s tackle the beef. Here’s my secret: always slice against the grain. Look for those little lines running through the meat and cut perpendicular to them – this breaks up the muscle fibers and guarantees tender bites. Aim for slices about 1/4-inch thick – not too thick, not too thin. For the peppers and onions, uniform slices mean everything cooks evenly. I like my pepper strips about the length of my pinky finger – they hold up beautifully during the long cook time.

Mixing the Sauce

This sauce is where the magic happens! In a small bowl, whisk together the beef broth, soy sauce, and cornstarch until smooth – no lumps! The cornstarch is our thickening agent, creating that perfect glossy sauce that clings to every bite. Then stir in the ginger, brown sugar, and black pepper. Taste it – you should get a nice balance of savory, sweet, and just a hint of spice. Too salty? Add a teaspoon more brown sugar. Too sweet? A splash more soy sauce. Trust your taste buds!

Cooking and Serving

Now, the easy part: layer the beef and veggies in your crockpot, pour the sauce over everything, and give it a gentle stir. Cover and cook on low for 6-7 hours (my preferred method for ultimate tenderness) or high for 3-4 hours if you’re in a hurry. You’ll know it’s done when the beef is fork-tender and the peppers are soft but still hold their shape. Serve it over a bed of fluffy white rice or egg noodles to soak up all that delicious sauce. A sprinkle of green onions on top makes it look restaurant-worthy!

Why You’ll Love This Crockpot Pepper Steak

This recipe has earned a permanent spot in my dinner rotation for so many reasons – let me count the ways you’re going to adore it:

  • Set-it-and-forget-it easy – Just 15 minutes of prep in the morning means dinner practically makes itself while you go about your day
  • Melt-in-your-mouth beef – The slow cooking transforms even budget-friendly cuts into something luxuriously tender
  • Customizable heat level – Add red pepper flakes or a dash of sriracha if you like it spicy (my husband always does!)
  • Meal prep superstar – The flavors actually improve overnight, making fantastic leftovers for lunch
  • One-pot wonder – Minimal cleanup means more time to relax after dinner

Seriously, this dish checks all the boxes – easy, delicious, and satisfying. The kind of recipe you’ll find yourself making again and again!

Tips for the Best Crockpot Pepper Steak

After making this recipe more times than I can count, I’ve picked up some tricks that take crockpot pepper steak from good to knock-your-socks-off amazing. Here are my can’t-miss tips:

  • Brown the beef first – A quick 2-minute sear in a hot skillet adds incredible depth of flavor. Don’t skip this step if you’ve got an extra 5 minutes!
  • Add peppers halfway through – For crisper veggies, toss them in during the last 2 hours of cooking. They’ll keep that perfect tender-crisp bite.
  • Thicken the sauce at the end – If your sauce needs more body, mix 1 tbsp cornstarch with 2 tbsp cold water and stir it in 30 minutes before serving.
  • Use the right cut – Sirloin works great, but chuck roast (cut into strips) becomes unbelievably tender and adds richer flavor.
  • Don’t peek! – Every time you lift the lid, you add 15-20 minutes to the cook time. Resist the urge to stir!

One more thing – if your sauce tastes flat at the end, a splash of rice vinegar or squeeze of lime juice brightens everything up beautifully. Happy cooking!

Ingredient Substitutions

Don’t stress if you’re missing an ingredient – this recipe is wonderfully adaptable! Here are my tried-and-true swaps that still deliver amazing results:

  • Soy sauce alternative: Tamari works perfectly for gluten-free needs, or use coconut aminos for a slightly sweeter twist (reduce the brown sugar if you do).
  • Brown sugar swap: Honey or maple syrup add lovely depth – just use 3/4 the amount since they’re sweeter.
  • Beef variations: Flank steak or chuck roast (cut thin) work great instead of sirloin – chuck gets especially tender.
  • Veggie options: No bell peppers? Try mushrooms or zucchini (add these in the last hour though).
  • Broth hack: A bouillon cube + water works in place of beef broth – just watch the salt.

The key is keeping the liquid ratios similar – everything else you can play with!

Storing and Reheating Crockpot Pepper Steak

Here’s the beautiful thing about this pepper steak – it tastes even better the next day! Store leftovers in an airtight container in the fridge for up to 3 days. For longer storage, freeze portions in freezer-safe bags for 2-3 months (thaw overnight in the fridge before reheating). When warming it up, I’ve found the stovetop works best – just splash in a tablespoon of water or broth and heat gently over medium-low, stirring occasionally. The microwave works in a pinch (cover with a damp paper towel to keep it from drying out), but go easy – 30-second bursts with stirring in between keeps the beef tender instead of rubbery. Pro tip: Freshly cooked rice makes those leftovers feel like a brand new meal!

Nutritional Information

Just so you know what you’re enjoying, here’s the nutritional breakdown per serving (about 1.5 cups with sauce). Keep in mind these are estimates – actual values can vary based on your specific ingredients and portion sizes. Each serving packs about 320 calories, with 35g protein to keep you satisfied. You’ll get 15g carbs (mostly from the veggies and sauce), 12g fat, and 2g fiber. The sodium comes in around 800mg – if you’re watching salt, definitely use low-sodium soy sauce and broth. Not bad for such a flavorful, comforting meal!

Frequently Asked Questions

Over the years, I’ve gotten so many great questions about this crockpot pepper steak recipe – here are the ones that come up most often with my tried-and-true answers:

Can I use frozen bell peppers instead of fresh?

Absolutely! Just toss them in frozen (no need to thaw) and add an extra 30 minutes to the cook time. They’ll be softer than fresh, but still delicious. I keep a bag of mixed peppers in my freezer just for this recipe!

How can I make the sauce thicker?

If your sauce is too thin at the end, mix 1 tablespoon cornstarch with 2 tablespoons cold water, stir it into the crockpot, and let it cook uncovered for 15-20 minutes. Works like a charm every time!

What’s the best cut of beef for slow cooker pepper steak?

While sirloin is my go-to, chuck roast (cut into strips) becomes incredibly tender and adds richer flavor. Flank steak works too – just slice it extra thin against the grain.

Can I make this pepper steak recipe spicy?

You bet! Add 1/2 teaspoon red pepper flakes with the other spices, or stir in a tablespoon of sriracha with the sauce ingredients. My family loves it both ways!

Alright, now it’s your turn to experience this crockpot magic! I can’t wait for you to try this pepper steak recipe and see just how easy and delicious it is. When you do, come back and tell me all about it in the comments – did you stick to the classic version or add your own twist? Did your family go crazy for it like mine does? Trust me, once you taste that tender beef and flavorful sauce over a bed of rice, you’ll understand why this recipe has been my weeknight hero for years. Happy slow cooking!

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Crockpot Pepper Steak: 6-Hour Magic for Tender Perfection

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A simple and flavorful crockpot pepper steak recipe with tender beef and colorful bell peppers.

  • Author: PureCookingJoy
  • Prep Time: 15 mins
  • Cook Time: 6 hours
  • Total Time: 6 hours 15 mins
  • Yield: 4 servings 1x
  • Category: Main Dish
  • Method: Slow Cooker
  • Cuisine: American
  • Diet: Low Lactose

Ingredients

Scale
  • 1.5 lbs beef sirloin, sliced thin
  • 2 bell peppers (red and green), sliced
  • 1 onion, sliced
  • 3 cloves garlic, minced
  • 1/2 cup beef broth
  • 1/4 cup soy sauce
  • 1 tbsp cornstarch
  • 1 tsp ginger, grated
  • 1 tbsp brown sugar
  • 1/2 tsp black pepper

Instructions

  1. Place beef, bell peppers, onion, and garlic in the crockpot.
  2. In a bowl, mix beef broth, soy sauce, cornstarch, ginger, brown sugar, and black pepper.
  3. Pour the sauce over the beef and vegetables.
  4. Cover and cook on low for 6-7 hours or high for 3-4 hours.
  5. Serve over rice or noodles.

Notes

  • Slice beef against the grain for tenderness.
  • Add a splash of vinegar for extra tang if desired.
  • Store leftovers in an airtight container for up to 3 days.

Nutrition

  • Serving Size: 1 serving
  • Calories: 320
  • Sugar: 6g
  • Sodium: 800mg
  • Fat: 12g
  • Saturated Fat: 4g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 15g
  • Fiber: 2g
  • Protein: 35g
  • Cholesterol: 90mg

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