Clean the mushrooms, remove the stalks, then tear roughly into chunks. Slice the courgette lengthwise into 3-4 thin strips (no need to cut off the ends).
In a bowl, mix the vegetables with 4 tbsp olive oil and a couple of pinches of salt.
Heat a frying pan. When hot, add the zucchini and mushroom. Cook until golden brown (for about 7-8 minutes), don't stir it too much!
Remove the pan from the heat and add the lemon juice and garlic, then season to taste.
Drizzle with the remaining olive oil and sprinkle with the basil leaves. Serve warm.