Asian Beef

1 lb baking potato , peeled and cut into 1-inch cubes 1 lb sweet potato , peeled and cut into 1-inch cubes 3 1/2 lbs beef brisket , trimmed 1/2 cup hoisin[...]

8 ounces thin steak (or chicken breast or shrimp or pork) 2 teaspoons oil (divided) 1 tablespoon sesame seeds 1/2 large sweet onion (Texas 1015 or Vidalia,[...]