Make this vegan corned beef for your Saint Patrick's Day feast served with cabbage and potatoes or any time you want a good hearty main dish for dinner! (It also makes amazing vegan reuben sandwiches!) This meaty homemade seitan recipe - with beets for that bright pink color -  is made in your slow cooker before being baked with a black pepper crust. The result is 100% worth the time that goes into it!