Sweet Potato, Kale and Feta Muffins Recipe - BettyCrocker.com

Ingredients

• 2 medium sweet potatoes, peeled and cut into 1/2-inch cubes (2 1/2 cups)
• 1 tablespoon olive oil
• 2 eggs
• 1/3 cup butter, melted
• 1/2 cup milk
• 1 1/2 cups Gold Medal™ all-purpose flour
• 2 tablespoons packed brown sugar
• 2 teaspoons baking powder
• 1/8 teaspoon fine sea salt
• 1/8 teaspoon freshly ground black pepper
• 1 1/2 cups baby kale or baby spinach, coarsely chopped
• 3/4 cup crumbled feta cheese
• 1/2 cup shredded Gruyère cheese (2 oz)