If you’re looking for an easy weeknight dinner that’s fast, flavorful, and family-approved, this beef and pepper stir fry is a perfect choice. Ready in just 30 minutes, it delivers tender slices of beef, crisp bell peppers, and a rich, savory sauce that tastes just like your favorite takeout.
This recipe is simple to make, budget-friendly, and perfect for busy nights when you need something quick but satisfying. Serve it over rice or noodles for a complete meal the whole family will love.
Looking for more easy dinner ideas like this? Explore our 30-Minute Recipes for quick weeknight meals, browse our Budget Meals for affordable family favorites, or check out our Healthy Recipes for lighter options. You can also plan your week with our Weekly Meal Plans or improve your cooking skills with our Cooking Tips & Guides.
Why You’ll Love This Recipe
- Easy to make with simple ingredients
- Ready in just 30 minutes
- Perfect for busy weeknight dinners
- Budget-friendly and family-approved
- Better than takeout at a fraction of the cost
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Ingredients You’ll Need
This easy beef and pepper stir fry uses simple, affordable ingredients that come together to create a rich, savory, takeout-style flavor at home. With tender beef, fresh bell peppers, and a quick garlic soy sauce, this recipe is perfect for a fast and satisfying weeknight dinner.
These fresh, simple ingredients are all you need to create a flavorful beef stir fry in just 30 minutes.
Ingredients
- 1 lb flank steak or sirloin, thinly sliced against the grain
- 2 bell peppers, sliced (any color)
- 1 small onion, sliced
- 3 cloves garlic, minced
For the Sauce
- 3 tablespoons soy sauce
- 1 tablespoon oyster sauce (optional, for added depth)
- 1 tablespoon cornstarch
- 1/2 cup beef broth or water
- 1 tablespoon brown sugar
For Cooking
- 2 tablespoons oil (vegetable or olive oil)
- Salt and pepper to taste
For Serving
- Cooked rice or noodles
💡 Ingredient Tips (High Value Add)
- Slice the beef thinly against the grain for the most tender results
- Use a mix of bell pepper colors for better flavor and presentation
- Oyster sauce adds a deeper, takeout-style taste but can be skipped
- Prep all ingredients before cooking—stir fry moves quickly
Once everything is prepped, this easy beef and pepper stir fry comes together quickly in just one pan.
How to Make Easy Beef and Pepper Stir Fry
This easy beef and pepper stir fry comes together quickly in just one pan, making it perfect for busy weeknight dinners. With a few simple steps and high heat cooking, you’ll have a flavorful, takeout-style meal ready in about 30 minutes.
Start by preparing your ingredients and cooking the beef quickly over high heat to lock in flavor.
Step-by-Step Instructions
1. Slice the Beef
Thinly slice the beef against the grain and season lightly with salt and pepper.
2. Cook the Beef
Heat 1 tablespoon of oil in a large skillet or wok over medium-high heat. Add the beef and cook for 2–3 minutes until browned. Remove from the pan and set aside.
3. Cook the Vegetables
Add the remaining oil to the pan. Stir in the sliced bell peppers and onion. Cook for 3–4 minutes until slightly tender but still crisp.
4. Add Garlic
Add the minced garlic and cook for about 30 seconds until fragrant.
Next, bring everything together with a simple, savory stir fry sauce.
5. Make the Sauce
In a small bowl, whisk together soy sauce, oyster sauce (if using), beef broth, brown sugar, and cornstarch.
6. Combine Everything
Return the cooked beef to the pan. Pour in the sauce and stir everything together.
7. Thicken the Sauce
Cook for 1–2 minutes, stirring continuously, until the sauce thickens and coats the beef and vegetables.
The finished stir fry should be rich, glossy, and packed with tender beef and vibrant peppers.
8. Serve and Enjoy
Serve hot over rice or noodles for a complete, satisfying meal.
Once everything is prepped, this easy beef and pepper stir fry comes together quickly in just one pan.
Easy Beef and Pepper Stir Fry (30 Minute Weeknight Dinner)
Equipment
- 1 Large skillet or wok
- 1 Cutting Board
- 1 Sharp knife
- 1 Mixing bowl
- 1 Wooden spoon or spatula
Ingredients
- 1 lb Flank steak or sirloin
- 2 medium Bell peppers
- 1 small Onion
- 3 cloves Garlic
- 3 tbsp Soy sauce
- 1 tbsp Oyster sauce (optional)
- 1 tbsp Cornstarch
- 1/2 cup Beef broth or water
- 1 tbsp Brown sugar
- 2 tbsp Cooking oil
Instructions
- Slice beef thinly1 lb Flank steak or sirloin
- Heat oil and cook beef2 tbsp Cooking oil
- Remove beef and cook vegetables1 small Onion, 2 medium Bell peppers
- Add garlic3 cloves Garlic
- Mix sauce ingredients3 tbsp Soy sauce, 1 tbsp Oyster sauce (optional), 1 tbsp Cornstarch, 1 tbsp Brown sugar, 1/2 cup Beef broth or water
- Return beef and add sauce1 lb Flank steak or sirloin, 3 tbsp Soy sauce, 1 tbsp Oyster sauce (optional)
- Stir until thickened
- Serve hot over rice or noodles for a complete meal. Garnish with sliced green onions or sesame seeds if desired.
Video
Notes
- Use the right cut of beef: Flank steak or sirloin works best for stir fry because it stays tender when sliced thinly.
- Slice against the grain: Cutting the beef this way helps keep it tender and easy to chew.
- Cook over high heat: Stir fry cooks quickly, so higher heat helps sear the beef and prevent it from becoming tough.
- Don’t overcrowd the pan: Cook beef in batches if needed so it browns instead of steaming.
- Adjust the sauce as needed: If the sauce becomes too thick, add a splash of water or broth to loosen it.
- Customize with vegetables: Broccoli, snap peas, carrots, or mushrooms can be added for variety.
- Serving tip: Serve over rice or noodles and garnish with sesame seeds or green onions if desired.
- Storage tip: Store leftovers in the refrigerator for up to 4 days and reheat gently for best texture.
Now that your beef stir fry is ready, here are a few helpful tips, serving ideas, and storage options to get the most out of this meal.
Helpful Notes for This Recipe
- Slice beef against the grain: This helps keep the beef tender and easy to chew after cooking.
- Use high heat for best results: Stir fry cooks quickly, so medium-high to high heat is key for getting a good sear without overcooking.
- Don’t overcrowd the pan: If needed, cook the beef in batches so it browns properly instead of steaming.
- Prep everything before cooking: Stir fry moves fast, so having all ingredients ready ahead of time makes the process smooth and stress-free.
- Adjust sauce consistency as needed: If the sauce gets too thick, add a splash of water or broth to loosen it.
- Customize with extra vegetables: Broccoli, snap peas, carrots, or mushrooms all work well in this recipe.
- Make it slightly spicy (optional): Add red pepper flakes or a drizzle of sriracha for a little heat.
Recipe Cost Breakdown
To help make meal planning easier, here’s an estimated cost breakdown for the ingredients used in this easy beef and pepper stir fry. Prices are based on average U.S. grocery store costs and may vary by location and brand. This quick weeknight dinner delivers bold flavor while staying affordable, making it a great budget-friendly meal for busy families.
| Easy Beef and Pepper Stir Fry | Estimated Cost | |
|---|---|---|
| Ingredient | Amount | Estimated Cost |
| Flank steak or sirloin | 1 lb | $9.00 |
| Bell peppers | 2 medium | $3.00 |
| Onion | 1 small | $1.00 |
| Garlic | 3 cloves | $0.50 |
| Soy sauce | 3 tbsp | $0.50 |
| Oyster sauce (optional) | 1 tbsp | $0.50 |
| Cornstarch | 1 tbsp | $0.25 |
| Beef broth or water | 1/2 cup | $0.25 |
| Brown sugar | 1 tbsp | $0.25 |
| Cooking oil | 2 tbsp | $0.25 |
| Total | $15.50 | |
| Cost Per Serving (4 servings) | $3.75 per serving |
How to Store & Reheat
- Refrigerate properly: Let the stir fry cool slightly, then store in an airtight container for up to 4 days. Keeping the sauce with the beef helps prevent it from drying out.
- Best way to reheat (recommended): Warm in a skillet over medium heat for 3–5 minutes, stirring occasionally. Add 1–2 tablespoons of water or broth to loosen the sauce and bring back its original texture.
- Microwave option (quick method): Heat in 30–45 second intervals, stirring between each round. Cover loosely to retain moisture and prevent the beef from becoming tough.
- Freezing tips: Freeze for up to 2 months in a sealed container. For best results, slightly undercook the peppers before freezing so they don’t become too soft when reheated.
- Reheating from frozen: Thaw overnight in the refrigerator, then reheat in a skillet for best texture. Avoid microwaving directly from frozen, as it can overcook the beef unevenly.
What to Serve with It
Pair this beef and pepper stir fry with simple sides to create a complete and satisfying meal the whole family will enjoy.
- Steamed white or brown rice
- Fried rice or garlic rice
- Noodles or lo mein
- Steamed broccoli or snap peas
Frequently Asked Questions
1. What cut of beef is best for stir fry?
Flank steak, sirloin, or skirt steak are the best choices because they cook quickly and stay tender when sliced thinly against the grain.
2. How do I keep beef tender in stir fry?
Slice the beef thinly against the grain and cook it quickly over high heat. Avoid overcooking, and remove it from the pan early before adding it back with the sauce.
3. Can I make beef and pepper stir fry ahead of time?
Yes, this recipe is great for meal prep. Store it in an airtight container in the refrigerator for up to 4 days and reheat when ready to serve.
4. Can I freeze beef stir fry?
Yes, you can freeze it for up to 2 months. For best texture, slightly undercook the vegetables before freezing so they don’t become too soft when reheated.
5. What vegetables can I add to stir fry?
You can easily customize this dish by adding broccoli, snap peas, carrots, mushrooms, or zucchini. Stir fry recipes are very flexible.
6. What sauce is used in beef stir fry?
This recipe uses a simple sauce made from soy sauce, garlic, broth, brown sugar, and cornstarch. It creates a rich, savory glaze similar to takeout-style stir fry.