Saute the onion, green pepper and garlic in the oil until tender then add the beef and cook until brown all over. Dump out the grease and add about 1/3 cup of water. Add the worcestershire sauce, salt, pepper and flour. Simmer until the juice thickens.
Separate the biscuits and brush the edges with the egg. Put the biscuits against the sides and bottom of a pie plate so it is completely covered.
Stir the rest of the egg into the meat mixture and then spoon the meat into the pie shell. If you wish you can garnish with a few tomato wedges. Bake in a pre-heated oven at 450 for about 8 to 10 minutes. The biscuits should be slightly browned.
NOTES: A quick hamburger dish. This gets its name because the biscuits around the edge puff up to look like the petals around the center of a sunflower.