Recipe: <!-- -->Baked Mashed Potato Casserole<!-- --> | Whole Foods Market

Ingredients

• 4 medium Russet or red potatoes, cut into quarters
• 2 tablespoons extra-virgin olive oil, divided
• 1 small yellow onion, chopped
• 1 large celery stalk, chopped
• 1/2 cup chopped red pepper
• 1/4 cup unsalted butter
• 1/2 cup 2% milk
• 1 teaspoon kosher salt
• 1/2 teaspoon ground black pepper
• 1/2 cup grated aged Gouda
• 3 tablespoons finely chopped chives