Simple, delicious and never boring.
Heat up olive oil and butter in the frying pan on medium. (Olive oil increases the burning temp of butter, so it is good to add it in)
Gently fry garlic and spring onions. Add the mushrooms and make sure not to overcrowd them or they will end up soft rather than browned. It should take you 5 min.
Add thyme, lemon zest and lemon juice. Season well. Mushrooms love black pepper, so I always add that extra bit.
Adjust to taste.
Toast or grill the bread. Spread mushrooms on top, sprinkle with parsley and drizzle with extra virgin olive oil.
Enjoy!