Roasted vegetable moussaka oven roasted

Name: Roasted vegetable moussaka oven roasted
Ingredients: * 1 eggplant thinly sliced; * 2 tablespoon olive oil; * 1 large zucchini thinly sliced; * 2 potato thinly sliced; * 1 onion sliced; * 1 clove garlic chopped; * 1 tablespoon white vinegar; * 1 can whole peeled tomato 14.5 ounce, chopped; * 1/2 can lentil 14.5 ounce, drained, juice reserved; * 1 teaspoon dried oregano; * 2 tablespoon chopped fresh parsley; * salt and pepper to taste; * 1 cup crumbled feta cheese; * 1 1/2 tablespoon butter; * 2 tablespoon all purpose flour; * 1 1/4 cup milk black pepper to taste; * 2 pinch ground nutmeg; * 1 egg beaten; * 1/4 cup grated parmesan cheese