Potato Soup With Beef - With greens

1/4 cup unsalted butter 1 1/2 lbs yellow onions , thinly sliced (about 4 cups) 3 celery ribs , chopped salt crushed red pepper flakes fresh ground black[...]

2 tablespoons butter 2 yellow onions , thinly sliced 1 tablespoon finely grated meyer lemon zest (about 2 lemons) 1/2 teaspoon grated peeled fresh ginger 1[...]

1/4 cup butter 1 small onion , diced 2 medium carrots , diced about the same size as the onion 2 tablespoons all-purpose flour 8 medium russet potatoes ,[...]

8 cups thin-skinned potatoes , cut into one inch cubes 2 large onions , diced small 2 stalks celery , finely chopped 4 garlic cloves , diced (or more) 1/2 cup[...]