Mix the crumbled cheese, milk and eggs. Don't over mix-cheese should be lumpy. Melt the butter in a cup. Butter the bottom of a casserole pan, I use a glass pie plate. Lay 5-6 sheets of filo dough, one after another (not together) as you spread some butter in between-use a brush. Spread 1/2 of the cheese mixture on top, lay another 3-4 sheets, spreading butter in between. Spread remaining half of mixture. Fold edges to center of pie plate. Lay the last 3-4 sheets on top with no butter in between. Tuck in edge if using pie plate. Spread the rest of the butter on top. Bake for about 30 minutes in a 400 degree oven, until golden.