• Before starting, preheat the oven to 450°F. 
• Wash and dry all produce.
• Peel, then cut shallot into 1/4-inch pieces.
• Thinly slice mushrooms.
• Remove any brown spots from potatoes, then peel and cut potatoes into 1-inch pieces.
• To a large pot, add potatoes, 2 tsp salt and enough water to cover (by approx. 1 inch) (use same for 4 servings). Cover and bring to a boil over high. 

• Meanwhile, to a large bowl, add half the vinegar, 1/4 tsp (1/2 tsp) sugar and 1/2 tbsp (1 tbsp) oil. Season with salt and pepper. Stir to combine.
• Top with spinach and salad topping mix. Set aside in the fridge until step 6.

• Once water is boiling, reduce heat to medium-high. Simmer uncovered for 10-12 min, until fork-tender.
• Drain and return potatoes to the same pot, off heat. 
• Roughly mash 2 tbsp (4 tbsp) butter and 3 tbsp (6 tbsp) milk into potatoes until slightly mashed. (NOTE: 'Smashed' potatoes will still have a few chunks!) 
• Season with salt and pepper.

• Meanwhile, pat steaks dry with paper towels, then season all over with salt and pepper. 
• Heat a large non-stick pan over medium-high. 
• When hot, add 1 tbsp (2 tbsp) oil, then steaks. 
• Pan-fry for 4-7 min per side, or until cooked to desired doneness.** (NOTE: If steaks brown too quickly, reduce heat to medium.)
• When steaks are done, remove from heat and transfer to a plate. Loosely cover with foil and set aside to rest for 2-3 min.

• Meanwhile, reheat the same pan over medium-high.
• When hot, add 1 tbsp (2 tbsp) oil, then mushrooms.
• Season with salt and pepper. Cook for 5-8 min, stirring often, until softened.
• Add garlic puree, shallots, flour and 1 tbsp (2 tbsp) butter. Cook for 1-2 min, stirring often, until shallots soften slightly.
• Reduce heat to medium, then stir in 2/3 cup (1 1/3 cups) water, broth concentrate, remaining vinegar and any beef resting juices.
• Bring to a simmer. Cook for 3-4 min, stirring occasionally, until gravy thickens slightly.

• Toss salad.
• Thinly slice steaks.
• Divide steaks, salad and smashed potatoes between plates.
• Spoon mushroom gravy over steaks and potatoes.

If you've opted for double striploin steak, prep and cook the same way the recipe instructs you to prep and cook the regular portion of sirloin steak.