Grilled Beef Steak with Roasted Sweet Potatoes
A hot grill and a hot oven work together here to build a balanced, straightforward dinner. As the sweet potatoes roast until their edges caramelize and their interiors turn soft, the sirloin takes just a few quick minutes over direct heat to develop a deep, savory crust. Keeping the seasoning minimal allows the natural flavor of the beef and the sweetness of the root vegetable to lead. Slicing the rested steak across the grain ensures every portion stays tender alongside the warm roasted cubes.
Why this one works
- Staggered cooking lets the sweet potatoes roast while the grill preheats, saving kitchen time.
- A simple seasoning profile highlights the natural richness of the beef sirloin.
- Sweet potato cubes develop nicely browned edges that contrast with their tender centers.
- Quick grilling time keeps the steak juicy without prolonged monitoring.
- Delivers a hearty balance of protein and roasted carbohydrates on one plate.
What you’ll need
- 1 lb (450g) beef sirloin steak Choose an evenly cut sirloin so it cooks at a uniform rate over direct heat.
- 2 cups (400g) cubed sweet potatoes Cut into uniform bite-sized pieces so they soften and brown evenly in the oven.
- 3 tbsp (45ml) olive oil Divided between roasting the potatoes and coating the steak to help seasonings adhere.
- 1 tsp (5g) kosher salt Coarse crystals season both the sweet potatoes and the beef effectively.
- 1/2 tsp (2g) black pepper Adds mild heat and aromatic crusting when seared on the grill.
- 2 cups (300g) potatoes, cubed
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What to have nearby
- Outdoor grill or grill pan
- Baking sheet
- Tongs
- Chef's knife and cutting board
Step-by-step instructions
Start by getting the sweet potatoes into the oven first, as they require the longest cook time. Once they are underway, fire up the grill so it is smoking hot and ready to sear the sirloin quickly.
- 1Step 1
Preheat grill to high heat.
- 2Step 2
Toss cubed sweet potatoes with half the olive oil, salt, and pepper. Roast at 400F (200C) for 25 minutes until tender.
- 3Step 3
Season steak with remaining oil and spices. Grill for 5 minutes per side for medium-rare.
- 4Step 4
Let the steak rest for 5 minutes before slicing against the grain to serve with potatoes.
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A few things worth knowing
- Spread the sweet potato cubes in a single layer on the baking sheet to ensure they roast rather than steam.
- Ensure the grill grates are thoroughly preheated before adding the steak to achieve distinct sear marks.
- Always allow the cooked sirloin to rest for the full 5 minutes before cutting so the juices redistribute throughout the meat.
- Cut the steak strictly across the grain into thin slices for the most tender bite.
Ways to make it your own
- Garnish the finished steak and potatoes with chopped fresh parsley or chives before serving.
- Add a light pinch of smoked paprika to the sweet potatoes before roasting for subtle smokiness.
Serving suggestions
Plate the sliced sirloin alongside a generous scoop of the roasted sweet potatoes. A simple side of steamed green beans, grilled asparagus, or dressed leafy greens rounds out the plate without competing with the steak.
Storage & reheating
Store leftover steak and roasted sweet potatoes in airtight containers in the refrigerator. Reheat gently in a warm skillet or oven until heated through to avoid overcooking the beef.
Nutrition notes
Nutrition is provided as a general estimate for the listed recipe. Brands, exact portions, and ingredient swaps can change the numbers.
Quick recipe answers
How do I identify the grain on a sirloin steak?+
Look closely at the surface of the meat before slicing to see the parallel lines of muscle fibers, then cut perpendicular across those lines.
Can I prepare the sweet potatoes in advance?+
You can peel and cube the sweet potatoes ahead of time; keep them submerged in cold water in the fridge, then dry thoroughly before tossing with oil and roasting.
With reliable timing and uncomplicated ingredients, this pairing of seared sirloin and caramelized sweet potatoes makes a dependable, satisfying dinner any night of the week.
Grilled Beef Steak with Roasted Sweet Potatoes
Juicy grilled sirloin steak paired with tender roasted sweet potatoes seasoned with olive oil, salt, and black pepper for a satisfying high-protein meal.
Ingredients
- 1 lb (450g) beef sirloin steak
- 2 cups (400g) cubed sweet potatoes
- 3 tbsp (45ml) olive oil
- 1 tsp (5g) kosher salt
- 1/2 tsp (2g) black pepper
- 2 cups (300g) potatoes, cubed
Instructions
- Preheat grill to high heat.
- Toss cubed sweet potatoes with half the olive oil, salt, and pepper. Roast at 400F (200C) for 25 minutes until tender.
- Season steak with remaining oil and spices. Grill for 5 minutes per side for medium-rare.
- Let the steak rest for 5 minutes before slicing against the grain to serve with potatoes.
Nutrition
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