Corned Beef & Cabbage with rolls

5 large red potatoes, peeled and sliced 6 carrots , peeled 2 large cabbage 3 tablespoons oil 1 onion , diced 2 (12 ounce) cans corned beef 14 ounces vegetable[...]

1 head savoy cabbage 1 (24 ounce) package Simply Potatoes Traditional Mashed Potatoes 8 slices first-cut deli corned beef (3/4 pound to 1 pound ) 3/4 cup[...]