Roast Beef with greens

1 tablespoon vegetable oil 2 potatoes , sliced thin 1/4 teaspoon pepper 1 teaspoon salt 1 medium onion , sliced 1 lb cooked beef, sliced 2 hard-boiled eggs ,[...]

1 loaf French baguette (cut into 30, 1/4-inch, slices) 2 tablespoons olive oil or 2 tablespoons vegetable oil 5 small plum tomatoes 1/2 cup chive & onion[...]