Melt 3 tbsp of the butter in a large skillet over medium heat. Add onion and cook, stirring, 3 minutes. Stir in garlic; cook 2 minutes. Add wine and farro; cook 1 minute or until most of the wine evaporates. Transfer to slow cooker.Advertisement
Stir in vegetable stock, pumpkin, 4 tbsp of the Parmesan and the sage. Cover and cook on HIGH for 4 hours. Uncover and gently stir in peas, remaining 1 tbsp butter, the salt and pepper. Spoon into bowls and top with walnuts and remaining 2 tbsp Parmesan.
For easy cleanup:
Line your slow cooker with a disposable slow cooker liner. Add ingredients as directed in recipe. Once your dish is finished cooking, spoon the food out of your slow cooker and simply dispose of the liner. Do not lift or transport the disposable liner with food inside.