June 16, 2026 · 30 min

Saucy Thyme Sirloin Steak with Roasted Sweet Potatoes and Green Beans Amandine

Dinner30 min1023 cal / serving

This steak dinner proves that a few simple upgrades can turn an everyday meal into something special. We start with tender sirloin and classic roasted green beans, then add sweet potatoes for a touch of natural sweetness. The real star is the luxurious pan sauce, infused with fresh thyme and finished with butter for a silky texture.

Toasted almonds add a delightful crunch to the green beans-a nod to the classic French preparation known as amandine. Everything comes together in about 30 minutes, making it perfect for a busy weeknight when you crave something a little extra.


Recipe details

Dinner30 min1023 cal / serving2 servings

Nutrition per serving

Calories1023 kcalProtein57 gFat67.4 gCarbs46.2 gSugar12.4 gFiber4.6 gSodium1080 mg

Dietary labels

Gluten-free: yesLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: not detectedMilk / dairy: containsEgg: not detectedFish: not detectedShellfish: not detectedPeanut: not detectedTree nuts: containsSoy: not detectedSesame: not detectedMustard: not detectedCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Sweet Potatoes2 unit Sweet PotatoesView ingredient guide
Thyme0.25 ounce ThymeView ingredient guide
Green Beans6 ounce Green BeansView ingredient guide
Sirloin Steak12 ounce Sirloin SteakView ingredient guide
Beef Demi-Glace1 unit Beef Demi-GlaceView ingredient guide
Almonds1 ounce AlmondsView ingredient guide
Olive Oil2 tablespoon Olive OilView ingredient guide
Butter1 tablespoon ButterView ingredient guide
SaltSaltView ingredient guide
PepperPepperView ingredient guide

Instructions

  1. Preheat oven to 400°F. Wash and dry all produce. Cut sweet potatoes into ½-inch cubes. Strip thyme leaves from stems and finely chop. On a baking sheet, toss sweet potatoes with half the thyme, a drizzle of olive oil and a pinch of salt and pepper.
  2. Roast sweet potatoes for 10 minutes. Remove from oven, toss and push to one side. Add green beans to the other side, drizzle with olive oil and season with salt and pepper. Return to oven and roast until green beans are tender and potatoes are golden, about 15 minutes more.
  3. Meanwhile, heat a drizzle of olive oil in a large skillet over medium-high heat. Season steak all over with salt and pepper. Cook to desired doneness, 4-7 minutes per side. Transfer to a cutting board and let rest 5 minutes.
  4. To the same skillet, add demi-glace, ¼ cup water and remaining thyme. Stir, scraping up browned bits. Simmer until thickened, 1-2 minutes. Remove from heat, add butter and swirl until melted. Season with salt and pepper.
  5. Sprinkle almonds over the green beans and sweet potatoes on the baking sheet. Thinly slice the steak against the grain. Divide vegetables and steak among plates, drizzle with pan sauce and serve.

Recipe Tips

For even cooking, let the steak come to room temperature for 15 minutes before searing.

If you prefer your steak medium-rare, aim for an internal temperature of 130°F.

FAQ

Can I use a different cut of steak?

Yes, you can substitute with ribeye, New York strip or flank steak. Adjust cooking time as needed.

What can I use instead of demi-glace?

You can substitute with 1 cup beef broth simmered until reduced by half or use 1 tablespoon soy sauce mixed with 1 cup beef broth.

Can I make this dish dairy-free?

Yes, omit the butter or use a dairy-free alternative. The sauce will still be flavorful.

DandyRecipes community

Rate and discuss this recipe

Your rating and comments help other DandyRecipes readers decide what to cook next.

Your recipe vote

No DandyRecipes user votes yet.

Recipe comments

0 DandyRecipes comments

No DandyRecipes comments yet.

More recipe ideas

12 similar recipes you might like

These suggestions are based on shared ingredients, meal type, and recipe metadata.