Μουσακάς νηστίσιμος με μπεσαμέλ πατάτας Αντώνης
large globe eggplants, cut lengthwise into strips • large zucchini, cut lengthwise into strips • large potatoes, cut lengthwise into strips • Olive oil for the zucchini, eggplants, and potatoes • Salt for sprinkling • olive oil (for the pot) (about 60 ml) • large onion, finely chopped • garlic clove • white mushrooms (about 500 grams) • glass sweet red wine (about 1.5 oz or 45 ml) • crushed tomatoes (about 14 oz or 400 grams) • tomato sauce (about 60 ml) •