Grease pan with olive oil. Peel the potatoes and wash them, cut them into slices and arrange them in the tray. The entire bottom of the pan should be covered with potato slices. Cut the peppers and onions sliced ​​and divide them into slices and arrange them on the potatoes. Cut the crab sticks and add them to the pan. Put fillet on everything. In a bowl, dilute canned tomatoes with water (same amount) and add the crushed garlic with salt - mix, then add 2-3 tbsp lemon juice, pepper and a pinch of savory. Mix well and pour the pan with the mixture. Should cover everything, but if it is not covered, add a little more water. Bake in preheated oven.