Roast the nuts in a pan without fat, remove. Wash the wild garlic, shake dry and chop coarsely, except for something to garnish. Grate the parmesan. Finely chop the nuts in oil in the universal chopper.
Add wild garlic little by little. Season to taste with salt, pepper and lemon juice. Clean the mushrooms, remove the stalk carefully and use them for other purposes. Grill the mushroom heads on a grill for 10-15 minutes, depending on the temperature, while turning.
Season with salt. Cut goat's cheese into quarters. Fill mushrooms with pesto and a piece of cheese each. Arrange on a plate and garnish with wild garlic.