First, make the filling: In a skillet, add some butter and the ground beef. Sauté until the beef changes color, then add the grated onion and cook until it softens. Add the seasonings, bouillon cube, and salt. Stir everything together and set aside.

Next, brush a baking dish with melted butter. Layer two sheets of phyllo dough, brush with butter, then add two more sheets and brush again. Continue layering and brushing until you use half the phyllo. Spread the beef filling evenly over the phyllo. Continue layering two sheets at a time, brushing with butter between each, until all the phyllo is used.

Cut the assembled phyllo pie into squares. Bake in the oven for 5 to 10 minutes. Remove from the oven and pour the mixture of milk, egg, and seasonings evenly over the entire dish. Return to the oven and bake until fully cooked. Enjoy!