Uploaded July 2026 | Updated September 2026, 1 week ago
Want to know how to cook steak? Join Ash Barty and Curtis Stone in the kitchen as they whip up a delicious beef steak with mushroom sauce and salad. Whether you’re making this for the family or indulging on your own, this recipe is sure to hit the spot.
What you’ll learn:
✅ How to make a creamy mushroom sauce
✅ Curtis Stone’s tips on how to cook steak to get the ultimate char
✅ How long to rest steak
✅ How to plate up steak and mash like a pro
BBQ steaks with potato mash, salad & mushroom sauce
Serves 4 Prep 15 mins (+ 5 mins resting time) Cooking 35 mins
6 washed white potatoes, peeled, chopped
⅓ cup (80ml) milk
1 cos lettuce, chopped
250g cherry tomatoes, quartered
1 Lebanese cucumber, chopped
½ red onion, thinly sliced
1 avocado, stoned, peeled, cut into wedges
2 x 300g pkts Coles No Added Hormones Australian Beef Eye Fillet Steaks
1 tbs Extra virgin olive oil, to serve
Balsamic vinegar, to serve
Mushroom sauce:
20g butter
200g pkt cup mushrooms, sliced
3 garlic cloves, finely chopped
½ cup (125ml) thickened cream
1 tbs Worcestershire sauce
½ tsp dried tarragon
1. Place potato in a saucepan and cover with cold water. Bring to the boil over high heat, then reduce heat to medium. Cook for 15 mins or until potato is very tender. Drain. Return to the pan and use a potato masher, fork or potato ricer to mash potato until smooth. Stir in the milk.
2. Meanwhile, combine the lettuce, tomato, cucumber, onion and avocado in a large serving bowl.
3. Melt the butter in a medium frying pan over medium heat. Add the mushroom and cook, stirring, for 2-3 mins or until golden. Add garlic and cook for 30 secs or until aromatic. Add the cream, Worcestershire sauce and tarragon and cook, stirring, for 5 mins or until sauce thickens
slightly. Season.
4. Heat a barbecue grill or chargrill on medium-high. Drizzle beef with the oil and turn to coat. Season. Cook on the grill for 3 mins each side for medium-rare or until cooked to your liking. Transfer steaks to a plate. Loosely cover with foil and set aside for 5 mins to rest.
5. Divide the steaks, mash and salad among serving plates. Drizzle the steaks with mushroom sauce. Top salad with a little oil and balsamic vinegar to serve.
00:00 Who’s Curtis cooking with?
00:22 Ash Barty is making steak with mushroom sauce and salad
01:13 Get to know Ash Barty
02:03 Make the mushroom sauce
02:41 Saute the garlic, onion and mushrooms with cream
03:33 Add the worcestershire and dried tarragon
03:55 Make the mashed potato with milk, salt and pepper
04:26 Time to cook the steak!
04:36 Season the steak with salt, pepper and olive oil
05:33 Put the steak on the barbecue and leave to caramelise for sweetness
05:56 Take the steaks off the heat and rest for 5 minutes
07:18 Time to assemble!
08:07 Taste test - delicious!
Want to know how to cook steak? Join Ash Barty and Curtis Stone in the kitchen as they whip up a delicious beef steak with mushroom sauce and salad. Whether you’re making this for the family or indulging on your own, this recipe is sure to hit the spot.
What you’ll learn:
✅ How to make a creamy mushroom sauce
✅ Curtis Stone’s tips on how to cook steak to get the ultimate char
✅ How long to rest steak
✅ How to plate up steak and mash like a pro
BBQ steaks with potato mash, salad & mushroom sauce
Serves 4 Prep 15 mins (+ 5 mins resting time) Cooking 35 mins
6 washed white potatoes, peeled, chopped
⅓ cup (80ml) milk
1 cos lettuce, chopped
250g cherry tomatoes, quartered
1 Lebanese cucumber, chopped
½ red onion, thinly sliced
1 avocado, stoned, peeled, cut into wedges
2 x 300g pkts Coles No Added Hormones Australian Beef Eye Fillet Steaks
1 tbs Extra virgin olive oil, to serve
Balsamic vinegar, to serve
Mushroom sauce:
20g butter
200g pkt cup mushrooms, sliced
3 garlic cloves, finely chopped
½ cup (125ml) thickened cream
1 tbs Worcestershire sauce
½ tsp dried tarragon
1. Place potato in a saucepan and cover with cold water. Bring to the boil over high heat, then reduce heat to medium. Cook for 15 mins or until potato is very tender. Drain. Return to the pan and use a potato masher, fork or potato ricer to mash potato until smooth. Stir in the milk.
2. Meanwhile, combine the lettuce, tomato, cucumber, onion and avocado in a large serving bowl.
3. Melt the butter in a medium frying pan over medium heat. Add the mushroom and cook, stirring, for 2-3 mins or until golden. Add garlic and cook for 30 secs or until aromatic. Add the cream, Worcestershire sauce and tarragon and cook, stirring, for 5 mins or until sauce thickens
slightly. Season.
4. Heat a barbecue grill or chargrill on medium-high. Drizzle beef with the oil and turn to coat. Season. Cook on the grill for 3 mins each side for medium-rare or until cooked to your liking. Transfer steaks to a plate. Loosely cover with foil and set aside for 5 mins to rest.
5. Divide the steaks, mash and salad among serving plates. Drizzle the steaks with mushroom sauce. Top salad with a little oil and balsamic vinegar to serve.
00:00 Who’s Curtis cooking with?
00:22 Ash Barty is making steak with mushroom sauce and salad
01:13 Get to know Ash Barty
02:03 Make the mushroom sauce
02:41 Saute the garlic, onion and mushrooms with cream
03:33 Add the worcestershire and dried tarragon
03:55 Make the mashed potato with milk, salt and pepper
04:26 Time to cook the steak!
04:36 Season the steak with salt, pepper and olive oil
05:33 Put the steak on the barbecue and leave to caramelise for sweetness
05:56 Take the steaks off the heat and rest for 5 minutes
07:18 Time to assemble!
08:07 Taste test - delicious!
