Easy Pepper Steak Stir-Fry Recipe – Quick & Flavorful Weeknight Dinner

Pepper Steak Stir-Fry is a fast, restaurant-quality beef stir-fry that you can make in under 20 minutes. This easy Pepper Steak Stir-Fry combines tender, thinly sliced flank steak with colorful bell peppers in a savory-sweet sauce made from soy sauce, sesame oil, garlic, and brown sugar, with a hint of heat from Sriracha. The cornstarch thickens the sauce to a glossy finish that coats every bite of beef and vegetables. Perfect for weeknight dinners, this Pepper Steak Stir-Fry delivers bold flavor with minimal effort, making it a go-to recipe for busy cooks who want a quick, satisfying, and homemade meal. Serve it over rice, rice noodles, or cauliflower rice for a complete, balanced dinner the whole family will enjoy.

Introduction

If you’ve ever craved a flavorful stir-fry but didn’t want to wait for takeout, Pepper Steak Stir-Fry is the answer. This recipe combines tender, thinly sliced flank steak with crisp bell peppers in a savory-sweet sauce that tastes like it came from a restaurant but can be made in your own kitchen in less than 20 minutes.

The key to this Pepper Steak Stir-Fry is the balance of flavors: the soy sauce provides umami, brown sugar adds a touch of sweetness, garlic and ginger offer aromatic depth, sesame oil brings a nutty richness, and Sriracha adds a hint of spice. Thickened with cornstarch, the sauce clings to every piece of steak and pepper, creating a glossy, flavorful coating.

This recipe is ideal for weeknight dinners, quick lunches, or meal prep. With minimal prep and cooking time, it’s a reliable and satisfying way to enjoy a protein-rich, vegetable-packed meal without compromising flavor or convenience.

Why You’ll Love This Recipe

• Quick & Easy
  Ready in under 20 minutes from start to finish.
• Bold, Balanced Flavor
  Sweet, savory, and slightly spicy for maximum taste.
• Tender Beef
  Flank steak cooks quickly and stays juicy when sliced thinly.
• Bright Vegetables
  Red and green bell peppers add color, crunch, and nutrition.
• Versatile Serving Options
  Perfect over rice, noodles, or low-carb cauliflower rice.
• Beginner-Friendly
  Simple steps make it easy for anyone to cook a restaurant-style stir-fry.

Ingredients Breakdown

Servings: 4

Beef and Vegetables

• 8 oz (225g) flank steak, thinly sliced against the grain
• 2 tablespoons olive oil, divided
• 1 red bell pepper, cut into 1-inch cubes
• 1 green bell pepper, cut into 1-inch cubes
• 3 garlic cloves, minced

Sauce

• 1/4 cup low-sodium soy sauce
• 1/4 cup brown sugar
• 2 teaspoons sesame oil
• 1 teaspoon ground ginger
• 1 tablespoon Sriracha (or favorite hot sauce)
• 1 tablespoon cornstarch

Garnish

• Chopped cilantro
• Sesame seeds

Ingredient Highlights

Flank Steak – Thinly sliced against the grain ensures tenderness and quick cooking.

Bell Peppers – Red and green peppers provide color, crunch, and natural sweetness.

Garlic & Ginger – Add aromatic flavor that complements the beef and sauce.

Cornstarch – Thickens the sauce to a glossy consistency that clings to beef and vegetables.

Tools & Equipment Needed

• Cutting board
• Sharp chef’s knife
• Measuring spoons and cups
• Small mixing bowl
• Skillet or wok
• Wooden spoon or spatula
• Tongs
• Serving plates

Optional:

• Rice cooker or pot for serving with rice or noodles

Step-by-Step Instructions

1. Prepare the Sauce

In a small bowl, whisk together:

• 3 garlic cloves, minced
• 1/4 cup brown sugar
• 1/2 cup low-sodium soy sauce
• 2 teaspoons sesame oil
• 1 teaspoon ground ginger
• 1 tablespoon Sriracha
• 1 tablespoon cornstarch

Set aside.

2. Cook the Bell Peppers

In a skillet over medium-high heat, add 1 tablespoon olive oil.

Add diced red and green bell peppers.

Cook 1–2 minutes until slightly tender but still crisp.

Remove the peppers and set aside on a plate.

3. Cook the Flank Steak

Increase heat to high.

Add the remaining 1 tablespoon olive oil.

Add the thinly sliced flank steak in a single layer.

Sear each side until browned.

Reduce heat to medium-high and continue cooking until no longer pink.

4. Combine with Peppers and Sauce

Return the cooked peppers to the skillet.

Pour the prepared sauce over the steak and peppers.

Simmer 1–2 minutes, stirring, until the sauce thickens and coats the steak and vegetables.

5. Serve

Sprinkle with chopped cilantro and sesame seeds.

Serve immediately over rice, rice noodles, or cauliflower rice.

Tips & Variations

Vegetarian Option

Replace steak with firm tofu or tempeh, cooking until golden and crispy before adding sauce.

Gluten-Free Option

Use tamari instead of soy sauce for a gluten-free version.

Adjust Spice Level

Increase Sriracha for more heat or omit for a milder version.

Vegetable Substitutions

Add snow peas, broccoli florets, or carrots for extra color and texture.

Make Ahead

Whisk the sauce ahead of time and store in the refrigerator until ready to cook.

Flavor Profile

Pepper Steak Stir-Fry balances sweet, savory, and slightly spicy flavors. The soy sauce and brown sugar create a rich umami base, while ginger and garlic provide aromatic warmth. Bell peppers add crunch and freshness, and sesame oil adds nutty undertones. When coated in the thickened sauce, each bite delivers tender, flavorful beef and crisp-tender vegetables for a satisfying texture contrast.

Nutritional Overview

Approximate nutrition per serving:

• Calories: 227.7
• Protein: 27.15 g
• Carbohydrates: 13.77 g
• Fat: 7.72 g
• Fiber: 0.34 g

Dietary considerations:

• High-protein meal
• Gluten-free if using tamari
• Low-carb when served over cauliflower rice

Make-Ahead & Meal Prep Tips

• Slice Beef in Advance – Flank steak can be sliced and stored in the refrigerator for a few hours before cooking.
• Sauce Prep – Mix the sauce ahead to save time during weeknight cooking.
• Vegetable Prep – Dice bell peppers in advance for quicker stir-fry assembly.

Storage – Store leftovers in an airtight container in the refrigerator for up to 2 days.

Reheating – Gently reheat in a skillet over medium heat until warmed through.

FAQs

Can I use a different cut of beef?
Yes, sirloin or skirt steak also work well if thinly sliced against the grain.

Can I make this gluten-free?
Yes, substitute tamari for soy sauce.

How do I prevent overcooking the beef?
Cook the steak in a single layer over high heat and remove from the pan as soon as it’s no longer pink.

Can I freeze leftovers?
It’s best served fresh, but cooked beef and vegetables can be frozen separately for up to 1 month.

Cooking Timeline

Step	Time
Prep Time	5 minutes
Cook Time	10 minutes
Total Time	15 minutes
Servings	4

Serving Suggestions

• Serve over steamed white or brown rice, rice noodles, or cauliflower rice for a low-carb option.
• Garnish with additional sesame seeds or sliced green onions for presentation.

Recipe Variations

1. Extra Veggie Version – Add snow peas, mushrooms, or carrots for more variety.
2. Spicy Kick – Increase Sriracha or add chili flakes to the sauce.
3. Garlic-Lime Variation – Add fresh lime juice and extra garlic for brightness.
4. Peanut Stir-Fry – Sprinkle roasted peanuts over the top for crunch and flavor.

Ingredient Spotlight

Flank Steak – Thinly slicing against the grain ensures tender beef that absorbs the sauce beautifully.

Bell Peppers – Provide color, crunch, and natural sweetness to balance the savory-sweet sauce.

Sesame Oil – Adds a nutty aroma and deepens the flavor profile of the stir-fry.

Pro Cooking Tips

• Slice Beef Uniformly – Ensures even cooking and tender texture.
• High Heat – Use a hot skillet or wok to quickly sear beef and preserve vegetables’ crispness.
• Cornstarch Slurry – Mix thoroughly to avoid lumps and achieve a glossy sauce.
• Quick Stir – Toss ingredients briefly in the sauce to coat without overcooking.

Storage & Freezing Guide

Refrigerator – Store in airtight containers for up to 2 days.

Freezer – Cooked stir-fry can be frozen for up to 1 month, though vegetables may soften.

Reheating – Reheat in a skillet over medium heat, stirring gently to maintain texture.

Nutrition Estimate (Per Serving)

Nutrient	Amount
Calories	227.7
Protein	27.15 g
Carbohydrates	13.77 g
Fat	7.72 g
Fiber	0.34 g

Dietary Notes: High-protein, gluten-free option available with tamari.

Expanded Conclusion

Pepper Steak Stir-Fry is a quick, flavorful, and balanced meal perfect for busy weeknights. Tender flank steak, crisp bell peppers, and a savory-sweet sauce come together in under 20 minutes to create a restaurant-quality dish at home.

The versatility of this recipe allows for substitutions, spice adjustments, and serving options that suit every household. Whether over rice, noodles, or cauliflower rice, this Pepper Steak Stir-Fry delivers bold flavors, satisfying textures, and a meal you’ll want to make again and again.

Save this recipe to enjoy a quick, protein-packed, and colorful dinner any night of the week.

Print