Winter Greens and Potato Casserole · Side Dishes · Outpost Natural Foods

Ingredients

• 8 cups water
• 12 cups chopped kale, stems removed (about 1/2 pound)
• 12 cups chopped mustard greens, stems removed (about 1/2 pound)
• 6 cups red potatoes, sliced to 1/8-inch-thick and divided (about 2 pounds)
• Cooking spray
• 2 cups vertically sliced onion, divided
• 3/4 teaspoon salt, divided
• 1 cup (4 ounces) shredded sharp provolone cheese, divided
• 1/2 cup vegetable broth