Grilled Lemongrass Filet Mignon with Vietnamese Marinade

By AislePrompt Editorial · Published 2026-04-29 · Updated 2026-04-29

Tender filet mignon marinated in traditional Vietnamese spices and lemongrass, grilled to juicy perfection. This Vietnamese recipe, ready in about 22 minutes, pairs filet mignon, lemongrass stalks, finely chopped, garlic cloves, minced 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. 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 filet mignon
• 2 lemongrass stalks, finely chopped
• 3 garlic cloves, minced
• 3 tbsp soy sauce
• 2 tbsp fish sauce
• 1 tbsp brown sugar
• 1 tsp black pepper, ground
• 2 tbsp vegetable oil
• 1 tbsp lime juice

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Instructions

1. Step 1: In a medium bowl, combine 2 finely chopped lemongrass stalks, 3 minced garlic cloves, 3 tbsp soy sauce, 2 tbsp fish sauce, 1 tbsp brown sugar, 1 tsp ground black pepper, 2 tbsp vegetable oil, and 1 tbsp lime juice to create the marinade.
2. Step 2: Place 1 lb filet mignon pieces into a large resealable bag and pour the marinade over the meat. Seal and refrigerate for 24 hours to allow flavors to deeply penetrate.
3. Step 3: Preheat grill to medium-high heat (about 400°F). Remove filet mignon from marinade, letting excess drip off, and grill for 4-5 minutes per side for medium rare, until grill marks form and meat is slightly charred.
4. Step 4: Let the grilled filet mignon rest for 5 minutes before slicing against the grain to retain juices and tenderness.