For the pancakes, mix eggs, milk and flour to a smooth dough. Season with salt and pepper and let it swell for about 15 minutes.
Meanwhile, wash the thyme, shake dry and pluck the leaves from the stalks. Grate the cheese. Wash the tomatoes. Clean the mushrooms, wash them briefly if necessary and halve them depending on size. Stir thyme and cheese into the dough.
Heat 1 tablespoon of oil in a coated frying pan. Fry half of the mushrooms and half of the tomatoes briefly in each. Spread half a dough on each. Bake for 2-3 minutes until the bottom is golden brown.
Turn and continue baking for 2-3 minutes. Warm the finished pancakes in the oven (at approx. 50°C).
From remaining mushrooms, tomatoes and dough in 1 tablespoon hot oil bake another pancake in the same way.