Nancy's Cheese Cake Triangles

1 1/3 cups flour
3/4 cup ground walnuts
1/2 cup brown sugar
1/2 cup butter

3/4 pound cream cheese
1/3 cup sugar
1 1/2 Eggs
2 2/3 tablespoons milk
1 1/3 tablespoons flour
1 teaspoon vanilla
1 1/3 tablespoons lemon juiceusing a pastry blender, blend first 4 ingrediants. reserve 1/3 of mixture to use as a topping . Pat remaining 2/3 of mix in bottom of pan 8x8 bake at 350 until bottom is set and just about to start turning brown.
Mix remaining ingrediants and pour over crust. top with remaining crumbs, bake at 350 15-20 minutes until set. Cool cut into 2 inch squares and then triangles.