Sautéed Beef and Zucchini with Garlic and Spinach
This simple sauté of tender beef strips with zucchini and spinach in a garlic-infused olive oil sauce is a perfect Whole30 dinner. This american-inspired whole30 (whole30, glutenfree) ready in about 25 minutes pairs thinly sliced into strips beef sirloin, washed and drained fresh spinach, minced garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart.
Ingredients
- 1 lb, thinly sliced into strips beef sirloin
- 2 medium, sliced into 1/4-inch half-moons zucchini
- 4 cups, washed and drained fresh spinach
- 4 cloves, minced garlic cloves
- 3 tbsp olive oil
- 1 tsp sea salt
- 1/2 tsp black pepper
- 1/4 tsp (optional) red chili flakes
Instructions
- Step 1: Heat 2 tbsp olive oil in a large skillet over medium-high heat. Add 1 lb thinly sliced beef sirloin strips and season with 1/2 tsp sea salt and 1/4 tsp black pepper. Sauté for 4-5 minutes until browned but still tender. Remove beef and set aside.
- Step 2: In the same skillet, add 1 tbsp olive oil and 4 minced garlic cloves. Sauté for 30 seconds until fragrant but not browned.
- Step 3: Add 2 medium sliced zucchini and cook for 5-6 minutes until tender and slightly caramelized. Season with 1/2 tsp sea salt, 1/4 tsp black pepper, and 1/4 tsp red chili flakes if using.
- Step 4: Return the beef to the skillet and add 4 cups fresh spinach. Stir everything together and cook for 2-3 minutes until the spinach wilts and everything is heated through.
- Step 5: Serve immediately, enjoying the tender beef with the garlicky sautéed vegetables.
Frequently asked questions
How long does Sautéed Beef and Zucchini with Garlic and Spinach take to make?
Total time is about 25 minutes (10 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 Garlic and Spinach?
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 minced garlic cloves from drying out.
Can I substitute ingredients in Sautéed Beef and Zucchini with Garlic and Spinach?
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 Garlic and Spinach 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 Garlic and Spinach whole30?
Yes — this recipe is tagged whole30, glutenfree, lowcarb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
