Sautéed Beef and Zucchini with Roasted Red Pepper Sauce

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Tender strips of beef quickly sautéed with zucchini and served with a smoky roasted red pepper sauce for a vibrant Whole30 dinner. This mediterranean-inspired beef (whole30, gluten free) ready in about 30 minutes pairs flank steak, zucchini, roasted red bell peppers 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.

Prep: 15 min Cook: 15 min Serves 4 Mediterranean cuisine 350 cal/serving
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Ingredients

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Instructions

  1. Step 1: In a blender, combine 1 cup chopped roasted red bell peppers, 2 minced garlic cloves, 1 tbsp apple cider vinegar, 1 tbsp olive oil, 1/2 tsp sea salt, and 1/4 tsp black pepper. Blend until smooth and set aside.
  2. Step 2: Heat 2 tbsp olive oil in a large skillet over medium-high heat. Add 1 lb thinly sliced flank steak seasoned with 1/2 tsp sea salt, 1/4 tsp black pepper, and 1/2 tsp smoked paprika. Sauté for 4-5 minutes until browned but still tender. Remove beef and keep warm.
  3. Step 3: In the same skillet, add 2 tbsp olive oil and 2 sliced medium zucchinis. Sauté for 5 minutes until zucchini is tender and slightly caramelized.
  4. Step 4: Return the beef to the skillet, pour the prepared red pepper sauce over, and toss everything together. Cook for 1-2 minutes until heated through and the sauce coats the beef and zucchini.
  5. Step 5: Serve immediately for a colorful, Whole30-friendly beef entree.

Frequently asked questions

How long does Sautéed Beef and Zucchini with Roasted Red Pepper Sauce take to make?

Total time is about 30 minutes (15 min prep + 15 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 Sautéed Beef and Zucchini with Roasted Red Pepper 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 Sautéed Beef and Zucchini with Roasted Red Pepper 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 Sautéed Beef and Zucchini with Roasted Red Pepper 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 Sautéed Beef and Zucchini with Roasted Red Pepper 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.

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