Picture (and recipe) from Real Simple Ingredients 1 pound sweet Italian sausage links, casings removed and broken into pieces 1 large onion, chopped 1 28-ounce can diced tomatoes 2 tablespoons tomato paste 2 cloves garlic, chopped kosher salt and black pepper 2 large russet potatoes (about 1 pound) 1 small bunch kale, stems discarded and leaves torn (about 7 cups) 1/2 cup milk 1/2 cup olive oil, plus more for serving Directions Combine the sausage, onion, tomatoes and their juices, tomato paste, garlic, 1 cup water, and ¾ teaspoon each salt and pepper in a 4- to 6-quart slow cooker. Nestle the potatoes in the liquid and top with the kale. Cover and cook until the potatoes are tender, on low for 7 to 8 hours or on high for 4 to 5 hours (this will shorten to...