Wash tomatoes carefully under running water. Slice them into even rounds. Sprinkle salt lightly over them. Place them on paper towels. Let them sit for 15 minutes. This removes extra water and improves flavor.

Take your pie crust and place it in the pie dish. Bake it for 10 minutes at 375°F. This step helps create a crispy base. It prevents the crust from becoming soft later.

Start by placing sliced onions on the bottom of the crust. Then add a layer of tomatoes. Sprinkle black pepper and a little garlic powder. Repeat layers until ingredients are used.

Sprinkle fresh basil and dried oregano over tomatoes. Add shredded cheddar cheese evenly on top. Then add mozzarella cheese. This gives a rich and creamy texture to the pie.

Mix mayonnaise in a bowl until smooth. Spread it gently over the cheese layer. Make sure it covers the entire surface. This topping helps bind everything together and adds flavor.

Place the pie in a preheated oven at 375°F. Bake it for 30–35 minutes. Watch until the top turns golden brown. The cheese should melt and bubble beautifully.

Remove the pie from the oven carefully. Let it cool for at least 15 minutes. This helps the filling set properly. Slice it gently for clean and neat pieces.