Stir-Fried Beef and Water Spinach with Garlic and Oyster Sauce

By AislePrompt Editorial · Published 2026-05-14 · Updated 2026-05-14

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are drafted and published.

Quick stir-fried tender beef slices and crisp water spinach tossed in a savory garlic oyster sauce. This Vietnamese-inspired beef recipe, ready in about 17 minutes, pairs beef sirloin, water spinach (rau muống), vegetable oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 3, 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. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 7 min Serves 3 Vietnamese cuisine 320 cal/serving

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Ingredients

10 oz, thinly sliced against the grain beef sirloin
1 lb, washed and cut into 3-inch lengths water spinach (rau muống)
2 tbsp vegetable oil
5 cloves, minced garlic cloves
3 tbsp oyster sauce
1 tbsp fish sauce
1 tsp sugar
1/4 tsp black pepper
2 tbsp water

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Instructions

Step 1: Heat 2 tbsp vegetable oil in a large wok or skillet over high heat until shimmering. Add 5 minced garlic cloves and stir-fry for 30 seconds until fragrant but not browned.
Step 2: Add 10 oz thinly sliced beef sirloin and stir-fry for 2 minutes until the beef just starts to brown but remains tender.
Step 3: Add 1 lb water spinach cut into 3-inch lengths and stir quickly for 1 minute until it begins to wilt.
Step 4: Pour in 3 tbsp oyster sauce, 1 tbsp fish sauce, 1 tsp sugar, 1/4 tsp black pepper, and 2 tbsp water. Toss everything together and cook for another 1-2 minutes until the sauce thickens slightly and coats the beef and greens.
Step 5: Remove from heat and serve immediately with steamed rice.