Beef Stew over Mashed Potatoes without flour

2 tablespoons olive oil 1 1/2 pounds stewing beef cut into 1 inch pieces 16 ounces mushrooms halved 3 cups carrot diagonally cut 1 cups onion coarsely chopped[...]

1 lb sirloin tip steak , trimmed and cut into 1 inch cubes 1/2 teaspoon sweet paprika 1 green pepper , chopped 1 cup canned whole tomatoes , chopped 1 onion ,[...]