Beef Stir-Fry with Bell Peppers and Zucchini in Ginger Sauce
Thinly sliced beef stir-fried with colorful bell peppers and zucchini in a fragrant ginger and garlic sauce, perfect for a Whole30-approved dinner. This Asian Fusion-inspired Whole30 recipe (gluten free), ready in about 27 minutes, pairs flank steak, red bell pepper, yellow bell pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 4, so it slots cleanly into a Whole30 week and pairs well with roasted sweet potato or a simple olive-oil salad. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 1 pound, thinly sliced against the grain flank steak
- 1 large, julienned red bell pepper
- 1 large, julienned yellow bell pepper
- 1 medium, sliced into half-moons 1/4-inch thick zucchini
- 2 tablespoons, finely grated fresh ginger
- 3 cloves, minced garlic cloves
- 3 tablespoons coconut aminos
- 2 tablespoons olive oil
- 1 teaspoon sesame oil
- 1 teaspoon, divided sea salt
- 1/2 teaspoon, divided black pepper
- 2, thinly sliced for garnish scallions
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Equipment for this recipe
Top-rated tools to make this recipe successfully.
Instructions
- Step 1: Heat 1 tablespoon olive oil in a large wok or skillet over high heat until shimmering. Add 1 pound thinly sliced flank steak seasoned with 1/2 teaspoon sea salt and 1/4 teaspoon black pepper. Stir-fry for 3-4 minutes until browned and just cooked through. Remove beef from wok and set aside.
- Step 2: Lower heat to medium-high, add remaining 1 tablespoon olive oil and 1 teaspoon sesame oil. Add 2 tablespoons grated fresh ginger and 3 minced garlic cloves, stir-frying for 30 seconds until fragrant.
- Step 3: Add 1 large julienned red bell pepper, 1 large julienned yellow bell pepper, and 1 medium sliced zucchini. Stir-fry vegetables for 4-5 minutes until crisp-tender.
- Step 4: Return beef to the wok. Pour in 3 tablespoons coconut aminos, and season with remaining 1/2 teaspoon sea salt and 1/4 teaspoon black pepper. Toss everything together for 1-2 minutes until heated through and sauce lightly coats ingredients.
- Step 5: Garnish with 2 thinly sliced scallions and serve immediately.
Frequently asked questions
How long does Beef Stir-Fry with Bell Peppers and Zucchini in Ginger Sauce take to make?
Total time is about 27 minutes (15 min prep + 12 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Beef Stir-Fry with Bell Peppers and Zucchini in Ginger Sauce?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep flank steak from drying out.
Can I substitute ingredients in Beef Stir-Fry with Bell Peppers and Zucchini in Ginger Sauce?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Beef Stir-Fry with Bell Peppers and Zucchini in Ginger Sauce for a different number of people?
The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
Is Beef Stir-Fry with Bell Peppers and Zucchini in Ginger Sauce whole30?
Yes — this recipe is tagged whole30, gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.








