Roast Beef with greens

1 tablespoon vegetable oil 1 onion, chopped 1 clove garlic, minced 4 tomatoes, chopped 2 cups chopped cooked roast beef 1 (8 ounce) jar prepared taco sauce 1[...]

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 ,[...]