Sautéed Grass-Fed Beef Strips with Zucchini Noodles and Tomato Basil Sauce

By AislePrompt Editorial · Published 2026-08-03 · Updated 2026-08-03

Tender strips of grass-fed beef quickly sautéed and served over fresh zucchini noodles tossed in a vibrant, homemade tomato and basil sauce. This Italian Whole30 recipe (low carb), ready in about 30 minutes, pairs grass-fed beef sirloin, zucchini, and olive oil for a weeknight-friendly dinner. 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 "Build a week of meals around this recipe" 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 lb grass-fed beef sirloin, thinly sliced into strips
• 3 medium zucchini, spiralized into noodles
• 2 tbsp olive oil
• 3 garlic cloves, minced
• 14 oz canned diced tomatoes
• 1/4 cup fresh basil leaves, chopped
• 1 tsp salt
• 1/2 tsp black pepper
• 1/4 tsp (optional) crushed red pepper flakes
• 1 tbsp lemon juice

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Heat 1 tbsp olive oil in a large skillet over medium-high heat. Add 1 lb thinly sliced grass-fed beef sirloin strips in a single layer and sauté for 3-4 minutes, stirring occasionally until browned but still tender. Remove beef and set aside.
2. Step 2: In the same skillet, add 1 tbsp olive oil and 3 minced garlic cloves. Sauté for 30 seconds until fragrant but not browned.
3. Step 3: Add 14 oz canned diced tomatoes, 1 tsp salt, 1/2 tsp black pepper, and 1/4 tsp crushed red pepper flakes if using. Simmer sauce for 8 minutes until slightly thickened.
4. Step 4: Stir in 1/4 cup chopped fresh basil leaves and 1 tbsp lemon juice into the tomato sauce, then add back the cooked beef strips. Toss to coat and heat through for 1 minute.
5. Step 5: While sauce simmers, lightly sauté 3 spiralized zucchini noodles in a separate non-stick pan over medium heat for 2 minutes until just tender but still firm.
6. Step 6: Plate zucchini noodles and spoon the beef and tomato basil sauce over the top. Serve immediately.