Wash the asparagus and peel the lower half, cut into pieces approx. 5 cm long. Clean and slice the mushrooms, wash and halve the tomatoes. Mix the vegetables in a bowl with the olive oil, lemon zest and herbs, season with salt and pepper.
Put everything in a large piece of aluminum foil, seal everything tightly and place in the oven on a baking sheet. Bake in the oven for 25 minutes at 180 ° C.