Corned Beef with Cabbage without brisket

2 tablespoons butter 2 tablespoons olive oil 2 large potatoes , cooked and cubed 1 large onion , chopped 2 garlic cloves , minced (optional) 1 red pepper,[...]

2 tablespoons butter 1 medium yellow onion , coarsely chopped 1 tablespoon sofrito sauce 1/2 cup tomato sauce 1 (9 ounce) package frozen French-cut green[...]

8 ounces medium egg noodles 4 tablespoons butter , divided 1 cup chopped onion 2 1/2-3 cups diced corned beef , about 12 ounces 16 ounces frozen chopped[...]