HOW TO MAKE IT
Heat your charcoal barbecue for at least 15–30 minutes before you start to cook. You want the grill to be sizzling hot.
Place the butter and garlic in a bowl and mix with a fork until combined. Using a teaspoon or your hands, press the garlic butter into each mushroom cup. Put the mushrooms on the grill so the stalk is facing the sky. Season the steaks with salt and add to the grill. Cook the steaks for 7 minutes, then turn them over and cook for another 7 minutes for medium−rare or until cooked to your liking. (The time may vary a bit, depending on the thickness of the steaks.) Remove and allow to rest for a few minutes before serving. Take the mushrooms off the grill when they are nice and soft.
While the meat is cooking, toss the asparagus in some butter and season with salt. Barbecue for a few minutes or until just tender.
Dish up the steaks, mushrooms and asparagus and enjoy.