Preheat oven 400 F
Skin potatoes and sliced thinly. Soak sliced potatoes in salted water
Cool eggs to room temperature, peel from skin then chop
Drain canned mushrooms
Mix broth with condensed soup
Line rectangular pan with aluminum foil
Drain potatoes and place/line some on pan
Sprinkle with freshly cracked black pepper
Top with grated cheese
Top with some mushrooms
Ladle some of broth mixture all over
Sprinkle with some chopped eggs (like 2 for bottom, 2 for middle and 2 for top)
Repeat full step one more time
Top with last round of sliced potatoes and baked for 1 hour uncovered
Take pan out and sprinkle top with grated cheese and eggs and bake for another 10 mins
Serve immediately