Cut the eggplant and zucchini into circles and fry in vegetable oil until golden brown.
Slice the tomatoes. Transfer vegetables to a deep baking dish alternating them.
Mix butter with flour and fry until golden brown.
Pour milk into the pan, add salt, pepper and mix until smooth so that there are no lumps.
Remove from heat and add grated mozzarella and mix.
Pour the vegetables with sauce and sprinkle with grated parmesan. Bake at 180 degrees 30 minutes.
Cool and serve a little.
Vegetable tian with creamy sauce is very nutritious, tasty, tender and juicy. Preparing such a dish is quite simple, it is perfect for the whole family for lunch or dinner. At your request and taste, you can use another cheese, and add your favorite spices. You can use milk of any fat content.